Stuffed Pepper Casserole

When summer gardens and farmers’ markets overflow with sweet, crisp bell peppers in every color, it’s the perfect signal to make this bake. This seasonal stuffed pepper casserole celebrates that peak produce, making the peppers the true star of the show. But honestly, I make this year-round. It’s the kind of cozy meal that solves a busy Tuesday just as beautifully as it honors a Sunday supper. It’s all the comforting, savory goodness of classic stuffed peppers, but without the fuss of stuffing and balancing each one. You get that same nostalgic flavor in every single spoonful.

This Stuffed Pepper Casserole is my go-to for a reason. It’s a true family dinner hero, transforming simple ingredients into a warm, satisfying dish that feels like a hug. Think of it as the ultimate lazy dinner that tastes anything but. It’s a one-pan wonder that brings everyone to the table, and the leftovers are arguably even better. If you’re looking for a cheap dinner for a family that doesn’t skimp on flavor or comfort, you’ve found it. Let’s get cooking.

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Ingredients List for Stuffed Pepper Casserole

This Stuffed Pepper Casserole recipe is built on a foundation of simple, flavorful ingredients that come together to create something truly special. Here’s what you’ll need:

• 1 ½ pounds lean ground beef (90/10 works great)
• 1 large yellow onion, diced
• 3 large bell peppers (I use a mix of red, green, and yellow), diced
• 3 cloves garlic, minced
• 1 (15 oz) can tomato sauce
• 1 (14.5 oz) can diced tomatoes, undrained
• 1 ½ cups uncooked long-grain white rice
• 3 cups beef broth (low-sodium preferred)
• 2 teaspoons dried oregano
• 1 ½ teaspoons smoked paprika
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 ½ teaspoons salt, plus more to taste
• ½ teaspoon black pepper
• 2 cups shredded cheddar cheese, divided
• Fresh parsley or green onions, for garnish

Smart Swaps & Notes:

• Ground Beef: Ground turkey, chicken, or a plant-based crumble work wonderfully here. For a different twist, try using Italian sausage in place of half the beef for extra flavor—check out my other sausage recipes for more inspiration.
• Rice: Use brown rice for a whole-grain option, but note you’ll need to add about ½ cup more broth and extend the bake time by 15-20 minutes.
• Cheese: A Monterey Jack blend or pepper jack adds a nice kick. For a dairy-free version, use your favorite melty vegan cheese shreds.
• Broth: Chicken or vegetable broth are perfect substitutes.

Timing for Your Casserole

• Prep Time: 20 minutes
• Cook Time: 45 minutes
• Total Time: 1 hour 5 minutes

That’s about 30% faster than making traditional individual stuffed peppers, since everything cooks together in one dish. Most of the time is hands-off baking, giving you a moment to tidy up or simply relax.

Step-by-Step Instructions

Making this casserole is a straightforward, comforting process. Follow these simple steps for a perfect result every time.

1. Preheat & Prep. Start by preheating your oven to 375°F (190°C). Grab your 9×13 inch baking dish—no need to grease it.
2. Brown the Beef. In a large skillet or Dutch oven over medium-high heat, cook the ground beef and diced onion until the beef is no longer pink and the onion is soft, about 8-10 minutes. Use a spoon to break up the meat as it cooks. Drain any excess grease.
3. Build the Flavor Base. Add the diced bell peppers and minced garlic to the skillet. Cook for another 4-5 minutes, just until the peppers begin to soften and the garlic is fragrant. This step builds a deep flavor foundation for your Stuffed Pepper Casserole.
4. Combine Everything. To the skillet, stir in the uncooked rice, tomato sauce, diced tomatoes, beef broth, and all the seasonings (oregano, smoked paprika, garlic powder, onion powder, salt, and pepper). Give it a really good stir, making sure the rice is evenly distributed and submerged in the liquid.
5. Bake. Carefully pour the entire mixture into your 9×13 baking dish. Cover tightly with aluminum foil. Bake for 35 minutes. The foil trap creates the perfect steamy environment for the rice to cook through.
6. Add Cheese & Finish. Remove the casserole from the oven and take off the foil. The rice should be tender and most of the liquid absorbed. Sprinkle 1 ½ cups of the shredded cheddar cheese evenly over the top. Return to the oven, uncovered, for 10 more minutes, or until the cheese is beautifully melted and bubbly.
7. Rest & Serve. Let the casserole sit for 5-10 minutes after baking. This allows the flavors to settle and makes serving much easier. Garnish with the remaining ½ cup of cheese and some fresh parsley or sliced green onions before dishing it up.

Nutritional Information

A serving of this Stuffed Pepper Casserole (based on 8 servings) provides approximately:

• Calories: ~420
• Protein: 28g
• Carbohydrates: 38g
• Fat: 17g
• Fiber: 3g

This dish is a good source of protein from the beef and cheese, and the bell peppers add a boost of Vitamin C. Using lean ground beef and low-sodium broth are easy ways to tailor it to your dietary preferences.

Equipment Needed

You don’t need any fancy tools for this cozy dinner. Just a few kitchen basics:

• A large skillet or Dutch oven (for browning the meat and veggies)
• A 9×13 inch baking dish
• Aluminum foil
• Measuring cups and spoons
• A sharp knife and cutting board
• A wooden spoon or spatula

Why You’ll Love This Stuffed Pepper Casserole

This recipe has earned a permanent spot in my dinner rotation, and here’s why it will in yours, too:

1. It’s the Ultimate Comfort Food, Simplified. You get every bit of the classic, nostalgic flavor without the tedious work of stuffing individual peppers. It’s comfort food, made easy.
2. Perfect for Real Life. It’s a one-dish wonder ideal for busy weeknights, lazy dinners, or feeding a crowd. Prep it ahead, pop it in the oven, and dinner is done.
3. Incredibly Adaptable. Swap the protein, change the cheese, adjust the spice level—this Stuffed Pepper Casserole is a forgiving canvas. It’s a fantastic cheap dinner for a family that can be different every time.
4. Leftovers Are a Gift. This casserole reheats like a dream, making it a brilliant meal prep option for lunches or a second easy dinner later in the week.

Healthier Alternatives for the Recipe

You can easily tweak this Stuffed Pepper Casserole to fit different dietary needs without losing its soul-satisfying taste.

• Gluten-Free: This recipe is naturally gluten-free! Just double-check that your broth and tomato products are certified gluten-free if needed.
• Lower-Carb: Substitute the white rice with cauliflower rice. Add it in during the last 10 minutes of baking (after you remove the foil) so it doesn’t get mushy. You’ll also need to reduce the broth by about 1 cup.
• Higher-Protein: Use extra-lean ground beef or ground chicken breast. You can also stir in a can of rinsed black beans or kidney beans when you add the tomatoes.
• Dairy-Free/Lighter: Simply omit the cheese or use a dairy-free alternative. The casserole is still deeply flavorful from the spices and tomatoes.

Serving Suggestions

This hearty casserole is a complete meal on its own, but a few simple additions can round out the table perfectly.

• Toppings: A dollop of sour cream or cool, creamy Greek yogurt is fantastic against the rich tomato sauce. Sliced avocado or a sprinkle of crushed red pepper flakes are also great adds.
• Simple Sides: A crisp green salad with a tangy vinaigrette, some buttery garlic bread, or simple steamed green beans are all perfect partners.
• For a Feast: If you’re serving this for a bigger gathering, it pairs wonderfully with other cozy dishes like my Cheesy Ground Beef Potato Casserole or a lighter option like my Salsa Verde Chicken Rice Skillet 2.

Common Mistakes to Avoid

A few simple tips will guarantee your Stuffed Pepper Casserole turns out perfect:

1. Not Dicing the Peppers Evenly. Aim for a uniform, small dice (about ½-inch pieces). This ensures they cook evenly and distribute their sweet flavor throughout every bite.
2. Using Instant or Minute Rice. Stick with regular long-grain white rice (like Jasmine or Basmati). Instant rice will turn to mush during the long bake time.
3. Skipping the Foil. That tight foil cover is non-negotiable. It creates the necessary steam to cook the rice properly. Without it, the top will dry out before the rice is done.
4. Forgetting to Let it Rest. Those 5-10 minutes after baking are crucial. They allow the casserole to set up, making it easier to serve and letting the flavors meld beautifully.

Storing Tips for the Recipe

This casserole is arguably even better the next day, making it a meal prep superstar.

• Refrigerator: Store leftovers in an airtight container in the fridge for up to 4 days.
• Freezer: Cool the baked casserole completely, then transfer portions to freezer-safe containers or bags. It will keep for up to 3 months. Thaw overnight in the fridge before reheating.
• Reheating: Reheat individual portions in the microwave until hot. For larger amounts, cover with foil and reheat in a 350°F oven for 20-25 minutes, or until warmed through. Add a splash of broth or water if it seems dry.

Conclusion

At the end of a long day, there’s nothing quite like a dish that brings everyone to the table with minimal fuss and maximum flavor. This Stuffed Pepper Casserole does exactly that. It’s a celebration of simple ingredients and warm memories, all baked into one comforting pan. Whether you’re craving a taste of childhood or need a reliable, delicious solution for a busy night, this recipe delivers. Regular kitchen, regular time, great results.

I hope this becomes a new favorite in your home. If you give it a try, I’d love to hear how it turned out for you! Leave a comment below and let me know. And don’t forget to tag @Homestyletable on Pinterest so I can see your beautiful creations.

If you love this format, you might also enjoy my classic Roasted Stuffed Bell Peppers for when you want the traditional presentation, or my Easy Taco Rice Bowl for another quick, flavor-packed ground beef dinner. For more cozy casserole ideas, my Spicy Southern Chicken Spaghetti Casserole is always a hit. Happy cooking.

FAQs about Stuffed Pepper Casserole

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