Stuffed Pepper Casserole!

Stuffed Pepper Casserole: A Comforting Classic Reimagined

There’s something magical about the aroma of a hearty casserole baking in the oven on a cool evening. Whether you’re winding down after a busy weekday or gathering loved ones around the dinner table, few dishes deliver comfort and satisfaction quite like a Stuffed Pepper Casserole. This dish combines the flavors of classic stuffed peppers with the ease of a one-pan meal—making it perfect for busy families, meal-prep enthusiasts, or anyone craving something warm, cheesy, and delicious.

Inspired by the traditional stuffed peppers my grandmother used to make, this casserole came to life as a way to preserve the flavor of her dish without the fuss of hollowing out and stuffing each pepper. It’s a hearty, colorful, and flavorful meal that brings people together, and it’s one of those recipes you’ll find yourself turning to again and again.

Why You’ll Love This Stuffed Pepper Casserole

If you’re looking for a recipe that checks all the boxes—easy, delicious, family-friendly, and freezer-friendly—you’ve found it. Here’s why this casserole is about to become your next go-to dinner:

  • One-pan convenience: Say goodbye to individually stuffing peppers.
  • Full of flavor: Ground beef, bell peppers, tomatoes, and melted cheese—what’s not to love?
  • Customizable: Swap ingredients to fit your dietary needs or preferences.
  • Meal prep friendly: Make ahead, freeze, or enjoy as leftovers.
  • Nutrient-packed: A great way to sneak in vegetables and protein.

It’s also a crowd-pleaser, making it ideal for potlucks, weeknight dinners, or even casual get-togethers.

Ingredients You’ll Need

Let’s break down what goes into this delicious dish. Each ingredient was chosen for maximum flavor, texture, and comfort.

Main Ingredients:

  • 1 pound ground beef – Opt for 85/15 lean ground beef for flavor without excess grease.
  • 1 onion, diced – Adds depth and a slight sweetness when sautéed.
  • 1 green bell pepper, diced – Offers a slight bitterness and crunch.
  • 1 red bell pepper, diced – Adds a sweeter pepper flavor and vibrant color.
  • 1 can (14.5 oz) diced tomatoes – Helps bring moisture and acidity to balance the richness.
  • 1 cup cooked white rice – Makes the dish filling and soaks up all the flavors.
  • 1 cup shredded cheddar cheese – Melts beautifully and brings a comforting finish.

Seasoning:

  • 1 teaspoon garlic powder – A touch of savory warmth.
  • Salt and pepper to taste – Season throughout for the best flavor.

Optional additions: Add red pepper flakes for a little heat, or throw in Italian seasoning for an herby twist.

Step-by-Step Instructions

Ready to bring this comfort classic to life? Here’s how to make this Stuffed Pepper Casserole from scratch.

Step 1: Preheat and Prep

Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with cooking spray or a small amount of oil. This prevents sticking and makes cleanup easier.

Step 2: Brown the Ground Beef

In a large skillet over medium heat, add the ground beef. Cook until fully browned, breaking it up with a spoon as it cooks. Drain any excess fat to prevent the casserole from becoming greasy.

Step 3: Sauté the Veggies

Add the diced onion, green bell pepper, and red bell pepper to the same skillet. Sauté for about 5–7 minutes, or until the vegetables are tender and fragrant. This step builds the foundational flavor of the casserole.

Step 4: Add Rice, Tomatoes, and Seasoning

Stir in the cooked white rice, diced tomatoes (with juices), garlic powder, salt, and pepper. Mix well to combine. Allow the mixture to simmer for about 5 minutes to meld the flavors.

Step 5: Transfer and Top with Cheese

Pour the mixture into your prepared baking dish, spreading it evenly. Sprinkle the shredded cheddar cheese over the top, covering the entire surface.

Step 6: Bake to Perfection

Place the casserole in the oven and bake for 25–30 minutes, or until the cheese is melted, bubbly, and slightly golden brown around the edges.

Step 7: Serve and Enjoy

Let the casserole rest for a few minutes before serving. Garnish with fresh parsley or chopped green onions if desired. Enjoy it as is or pair it with a side salad or garlic bread.

Tips for the Best Stuffed Pepper Casserole

This dish is incredibly forgiving, but a few tips can take it to the next level:

  • Use day-old rice: Slightly dried-out rice absorbs the flavors better than freshly cooked rice.
  • Grate your own cheese: Pre-shredded cheese often contains anti-caking agents that prevent smooth melting.
  • Try different meat: Ground turkey or sausage work just as well for a leaner or spicier twist.
  • Make it vegetarian: Skip the meat and use black beans, lentils, or a plant-based meat substitute.
  • Spice it up: Add hot sauce, chili powder, or diced jalapeños for extra heat.

Variations to Try

Don’t be afraid to get creative! This casserole is a great base for all kinds of flavors and diets.

Low-Carb Version

Swap the rice for cauliflower rice to lower the carbs without sacrificing taste or texture.

Southwest Style

Add black beans, corn, and a teaspoon of cumin for a Tex-Mex flair. Top with pepper jack cheese instead of cheddar.

Italian Inspired

Stir in Italian sausage instead of ground beef, use mozzarella cheese, and add a teaspoon of Italian seasoning.

Cheesy Upgrade

Mix some cheese into the casserole filling before baking for an even creamier texture.

What to Serve with Stuffed Pepper Casserole

This casserole is a full meal on its own, but here are a few ideas to round out your dinner:

  • Garlic bread or dinner rolls – Perfect for soaking up every bite.
  • Simple green salad – Add freshness and crunch to balance the hearty casserole.
  • Roasted vegetables – Think broccoli, zucchini, or carrots for extra nutrients.
  • Sour cream or hot sauce on the side – A dollop of tangy sour cream complements the spice and richness.

Storing and Reheating Tips

This dish stores beautifully, making it ideal for leftovers or meal prep.

Refrigerator:

Store in an airtight container for up to 4 days. Reheat individual portions in the microwave or warm the whole dish in a 325°F oven until heated through.

Freezer:

To freeze, let the casserole cool completely. Wrap tightly with plastic wrap and aluminum foil, or store in a freezer-safe container. Freeze for up to 3 months.

To reheat, thaw overnight in the fridge and bake at 350°F for 30–40 minutes, covered with foil.

Frequently Asked Questions (FAQs)

Can I use brown rice or quinoa instead of white rice?

Absolutely! Brown rice adds a nutty flavor and more fiber, while quinoa brings protein and a lighter texture. Just make sure they’re fully cooked before adding.

Can I make this ahead of time?

Yes! Assemble the casserole up to a day in advance, cover, and refrigerate. When ready to bake, let it come to room temperature for 15–20 minutes, then bake as directed.

Is this recipe gluten-free?

It can be! Just make sure your diced tomatoes and seasonings are gluten-free (most are). Also, double-check your cheese if it’s pre-shredded.

What’s the best way to double the recipe for a crowd?

Use two 9×13 dishes or a large roasting pan. Increase the baking time by 5–10 minutes and check for doneness.

Stuffed Pepper Casserole Nutrition Information (Estimated)

Per Serving (1/6 of recipe):

  • Calories: 390
  • Protein: 24g
  • Fat: 20g
  • Carbohydrates: 28g
  • Fiber: 3g
  • Sugar: 4g
  • Sodium: 480mg

Note: Nutritional values will vary depending on specific brands and substitutions.

Make It Tonight!

Whether you’re looking to recreate the nostalgic flavors of a childhood favorite or just need a satisfying weeknight dinner, this Stuffed Pepper Casserole is the answer. It’s got all the savory goodness of traditional stuffed peppers but in a cozy, scoopable form that’s perfect for sharing.

Give it a try, and don’t forget to customize it to suit your family’s tastes. Once you’ve made it, it’ll become a staple in your recipe rotation. Pin it, print it, and share it—this is one casserole you’ll want to tell everyone about.

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