The aroma of bell peppers roasting in the kitchen is one of those heartwarming reminders that comfort food doesn’t have to be complicated. This Easy Cheesy Stuffed Pepper Casserole is my go-to for those busy weeknights when the clock is ticking, yet my family craves something hearty and satisfying. In just 30 minutes, you can whip up this one-pot meal packed with the savory goodness of ground beef, melty cheese, and vibrant peppers—all simmered to perfection. It’s a clamor-pleaser that caters to both kids and adults alike, and cleanup is a breeze. What’s not to love about that? Ready to dive into this delightful dish? Let’s get cooking!

Why is This Casserole So Special?
Quick and Easy: This Easy Cheesy Stuffed Pepper Casserole comes together in just 30 minutes, making it the ultimate weeknight hero. One-Pot Wonder: With everything cooked in one pot, cleanup is minimal—perfect for busy lives! Flavor Explosion: The fragrant combination of bell peppers, savory beef, and melty cheese creates a taste sensation that will have your family asking for seconds. Versatile Options: Feel free to swap the ground beef for chicken or a plant-based alternative for a fresh twist. Pair it with a crisp side salad or garlic bread for a delightful meal. Dive into this Squash Casserole Soul for an equally exciting flavor adventure!
Stuffed Pepper Casserole Ingredients
For the Casserole
- Lean Ground Beef – This serves as the main protein source; feel free to substitute with ground turkey for a lighter meal.
- Bell Peppers (3, diced) – These add sweetness and texture; any color works, but green offers a sharper flavor.
- Onion (1, diced) – This ingredient provides depth of flavor; yellow or white onions are best for this dish.
- Italian Seasoning (1 tsp) – This enhances the overall flavor with aromatic herbs; adjust or omit for a milder taste.
- Sea Salt (1/2 tsp) & Black Pepper (1/4 tsp) – Essential for a balanced flavor; adjust to your taste preference.
- Garlic (3-4 cloves, minced) – Adds aromatic intensity; garlic powder (1 tsp) can be used as a substitute in a pinch.
- Beef Broth (2 cups) – This creates moisture and richness in flavor; vegetable broth works well for a vegetarian version.
- Diced Tomatoes (1 can, 14.5 oz, undrained) – Adds acidity and moisture; try fire-roasted tomatoes for an extra smoky flavor.
- Tomato Sauce (1 can, 8 oz) – This thickens the mixture and adds a rich tomato base; you can substitute with extra diced tomatoes if needed.
- Soy Sauce or Worcestershire Sauce (1 tbsp) – Both add an umami depth; tamari is a great gluten-free alternative.
- Uncooked Rice (1 cup) – Acts as a filling component; swap for white basmati or brown rice, adjusting cooking time as necessary.
- Shredded Cheddar Cheese (2 cups) – Provides creaminess and flavor; mozzarella can be a delightful alternative for added meltiness.
Optional Toppings
- Extra Shredded Cheese – Sprinkle some on top before melting for an irresistibly cheesy finish.
- Breadcrumbs – Add for a crunchy topping if you want a little extra texture and flavor.
This Stuffed Pepper Casserole is a quick and satisfying dish that will surely become a favorite in your household!
Step‑by‑Step Instructions for Easy Cheesy Stuffed Pepper Casserole
Step 1: Brown the Meat
In a large pot or deep skillet, heat over medium-high heat and add the lean ground beef and diced onion. Cook until the beef is browned and the onion is translucent, about 5–7 minutes. Use a wooden spoon to break the beef into smaller pieces as it cooks. Drain any excess grease to keep your Stuffed Pepper Casserole from becoming oily.
Step 2: Sauté the Peppers and Garlic
Add the minced garlic and diced bell peppers to the pot, stirring them into the meat mixture. Cook for another 3–5 minutes until the peppers soften and become fragrant. The combination of colors and aromas will start filling your kitchen with a delightful scent, signaling that your casserole is well on its way!
Step 3: Season It Up
Stir in the Italian seasoning, sea salt, and black pepper, mixing thoroughly to coat the meat and vegetables with the flavors. Allow the mixture to cook for an additional minute, enabling the spices to bloom and enhance the overall profile of the Stuffed Pepper Casserole.
Step 4: Add the Tomato Base
Pour in the diced tomatoes (undrained), tomato sauce, soy or Worcestershire sauce, and beef broth. Stir everything together, bringing the mixture to a gentle boil on high heat while stirring frequently. The tomatoes will add moisture and vibrancy, forming the base of your casserole’s rich flavor.
Step 5: Incorporate the Rice
Once boiling, add the uncooked rice, stirring to combine. Reduce the heat to medium-low and cover the pot. Allow the mixture to simmer for about 15 minutes or until the rice has absorbed most of the liquid and is cooked through. The casserole will begin to thicken and take shape at this delightful stage.
Step 6: Melt the Cheese
Remove the pot from heat and gradually add 1½ cups of shredded cheddar cheese, stirring until it melts seamlessly into the casserole. The creamy texture combined with the hearty ingredients will create a mouthwatering mix, making your Stuffed Pepper Casserole irresistibly comforting.
Step 7: Final Touches
For a cheesy topping, either sprinkle the remaining cheese on top and cover the pot for a few minutes until melted, or transfer the casserole to an oven-safe dish. Bake uncovered at 350°F for about 10–15 minutes until the top is golden and bubbly. The finishing touches will elevate the dish, making it visually appealing and mouthwatering.

How to Store and Freeze Stuffed Pepper Casserole
Fridge: Leftover Stuffed Pepper Casserole can be stored in an airtight container for up to 5 days. Reheat on the stovetop or in the oven until warmed through.
Freezer: For longer storage, you can freeze the casserole for up to 3 months. Let it cool completely, then transfer it to a freezer-safe container. Thaw overnight in the fridge before reheating.
Reheating: When ready to enjoy, preheat your oven to 350°F. Bake thawed casserole for about 20-25 minutes or until heated through. Ensure cheese is bubbly for that delicious melty texture!
Airtight Sealing: Always ensure the container is sealed properly to maintain freshness and prevent freezer burn.
What to Serve with Easy Stuffed Pepper Casserole
The aroma of this comforting casserole fills the kitchen, inviting you to create a delightful family meal experience.
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Garlic Bread: Perfect for soaking up the delicious sauce; its buttery flavor complements the savory filling beautifully.
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Crisp Garden Salad: A refreshing side that adds crunch and vibrant colors, balancing the richness of the casserole. Try adding a tangy vinaigrette for extra zest!
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Creamy Mashed Potatoes: The velvety texture offers a comforting contrast that’s hard to resist, enhancing the overall meal experience.
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Steamed Broccoli: This bright green veggie adds a nutritious pop of color and pairs well with the casserole’s hearty flavors, providing a lovely crunch.
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Roasted Vegetables: A medley of seasonal veggies brings depth and variety to your plate, rounding out your meal with complementary flavors.
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Homemade Cornbread: Its slightly sweet flavor and crumbly texture create a delightful pairing that captures the essence of home-cooked goodness.
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Light Sauvignon Blanc: This crisp white wine beautifully enhances the flavors of the casserole, making for an elegant addition to your dinner table.
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Chocolate Cake: For the sweet finish, this rich dessert offers a decadent contrast to the savory casserole, creating a delightful end to the meal.
These tasty sides not only elevate the Easy Stuffed Pepper Casserole but create a memorable feast for you and your loved ones!
Stuffed Pepper Casserole Variations & Substitutions
Get ready to personalize your casserole experience with these delicious twists that promise to delight your taste buds!
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Dairy-Free: Use dairy-free cheese alternatives for a comforting, cheesy experience without the dairy.
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Heat It Up: Add diced jalapeños or a sprinkle of crushed red pepper flakes for a spicy kick that tantalizes the palate. The warmth will elevate your dish and make it exciting!
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Vegetarian Delight: Replace the ground beef with lentils or quinoa to create a hearty vegetarian version that’s equally satisfying and rich in protein.
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Extra Veggies: Toss in some chopped spinach or zucchini to the mix for a nutrient-packed version that adds even more flavor. The vibrancy of the veggies will brighten up your casserole dish!
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Quinoa Swap: Use quinoa instead of rice for an added protein boost and a slightly nutty flavor profile. It lends a different texture and makes the dish even more wholesome.
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Barbecue Twist: For a fun flavor twist, substitute the beef broth with barbecue sauce and add diced chicken. This gives the casserole a sweet and smoky flavor that your family will love.
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Herb Infusion: Mix in some fresh herbs like cilantro or parsley at the end of cooking to brighten the flavors and add a fresh aroma to your casserole. This simple step can elevate your dish!
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Smoky Flavor: Swap in smoked paprika for regular seasoning to give your casserole a warm, smoky undertone. It’s a beautiful addition that complements the bell peppers perfectly.
Feel free to experiment and make this Easy Cheesy Stuffed Pepper Casserole truly your own! And if you’re looking for more delicious ideas, check out our Chicken Stuffing Casserole or indulge in a flavorful Sizzling Chinese Pepper treat!
Make Ahead Options
These Easy Cheesy Stuffed Pepper Casserole ingredients can be prepped in advance, making mealtime a breeze! You can chop the bell peppers, onion, and garlic up to 24 hours before cooking and store them in the refrigerator in an airtight container to maintain freshness. Additionally, you can brown the ground beef and combine it with the seasonings to prepare the base mixture, refrigerating it for up to 3 days. When you’re ready to cook, simply bring everything to a gentle boil, add the rice, and simmer until done. This way, your casserole will taste just as delicious and save you valuable time on busy weeknights!
Expert Tips for Stuffed Pepper Casserole
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Use Fresh Ingredients: Fresh bell peppers and garlic elevate the flavor of your Stuffed Pepper Casserole. Avoid expired veggies for the best taste!
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Customize Protein: Swap the lean ground beef for shredded chicken or a plant-based alternative to suit dietary preferences or special occasions.
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Watch the Rice: If you’re using brown rice, remember it takes longer to cook than white. Adjust your simmering time to ensure the casserole has the perfect texture.
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Don’t Skip the Drain: Make sure to drain excess grease from the ground beef after browning to prevent a greasy casserole later on.
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Experiment with Spices: Feel free to adjust or add spices like chili powder for a little kick, making the casserole customizable to your family’s taste.

Stuffed Pepper Casserole Recipe FAQs
How do I choose the best bell peppers for this recipe?
Absolutely! When selecting bell peppers, look for those that are firm, vibrant in color, and without any dark spots all over. The skin should be smooth and shiny, indicating freshness. Any color works for this casserole, but green peppers will give a sharper flavor compared to the sweeter red, orange, or yellow varieties.
How should I store leftovers of the casserole?
Very! Leftover Stuffed Pepper Casserole can be stored in an airtight container in the fridge for up to 5 days. Make sure to let the casserole cool down to room temperature before sealing it. To reheat, you can warm it on the stovetop or in the oven, ensuring that it heats through thoroughly.
Can I freeze the stuffed pepper casserole?
Of course! To freeze your casserole, allow it to cool completely. Transfer it into a freezer-safe container or wrap it tightly with aluminum foil, ensuring it’s airtight to prevent freezer burn. It can be frozen for up to 3 months. When ready to enjoy, thaw it overnight in the fridge and then reheat in the oven at 350°F for about 20–25 minutes, until it’s heated thoroughly.
What should I do if my casserole is too watery?
I often encounter this! If you find your Stuffed Pepper Casserole has too much liquid, try cooking it a bit longer uncovered to allow excess moisture to evaporate. You can also add a little more uncooked rice, which will absorb the liquid as it continues to cook, thickening the mixture. Just keep an eye on it to ensure the rice cooks through!
Are there any dietary considerations I need to watch out for?
Yes, it’s important to consider. If you’re cooking for guests with dietary restrictions, feel free to replace the ground beef with shredded chicken or a plant-based meat alternative for a healthier option. Additionally, for those sensitive to gluten, make sure to use gluten-free soy sauce or tamari in place of traditional soy sauce or Worcestershire sauce. Always check labels for hidden allergens.
How do I ensure the perfect melting cheese on top?
For that delightful, melty finish, once your casserole is cooked through, sprinkle the remaining cheese on top and cover the pot for about 5–10 minutes. This will help the cheese to melt evenly and become gooey. Alternatively, if transferring to an oven-safe dish, bake uncovered at 350°F for 10–15 minutes until the cheese is golden and bubbly.

Melt-in-Your-Mouth Stuffed Pepper Casserole Dreams
Ingredients
Equipment
Method
- In a large pot or deep skillet, heat over medium-high heat and add the lean ground beef and diced onion. Cook until the beef is browned and onion is translucent, about 5–7 minutes.
- Add the minced garlic and diced bell peppers, stirring into the meat mixture. Cook for another 3–5 minutes until peppers soften.
- Stir in Italian seasoning, sea salt, and black pepper, mixing thoroughly to coat meat and vegetables.
- Pour in diced tomatoes (undrained), tomato sauce, soy or Worcestershire sauce, and beef broth. Stir together and bring to a gentle boil.
- Once boiling, add uncooked rice, stirring to combine. Reduce heat to medium-low and cover. Simmer for about 15 minutes until the rice is cooked.
- Remove from heat and gradually add 1½ cups of shredded cheddar cheese, stirring until melted.
- For a cheesy topping, sprinkle remaining cheese on top and cover until melted or bake at 350°F for 10–15 minutes.

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