...
Close-up of a cheesy stuffed pepper casserole in a white baking dish, featuring rice, peppers, and ground beef.

Easy Stuffed Pepper Casserole: 1 Delicious Bake

User avatar placeholder
Written by Alex Hayes

September 29, 2025

Okay, so you know how sometimes you just crave those classic stuffed peppers, right? All that savory ground beef, fluffy rice, tender peppers, and rich tomatoey goodness? But then you look at the clock, and it’s already 6 PM, and the thought of coring and stuffing each pepper feels like a marathon? I totally get it. That used to be me! This stuffed pepper casserole is my answer to that craving. It captures every single amazing flavor you love from traditional stuffed peppers, but in a super easy, one-pan bake that’s honestly a lifesaver on busy weeknights. It’s all about bringing that soul-satisfying comfort food to your table without the fuss. For me, it started when I was still figuring out this whole cooking thing, wanting something that tasted special but was crazy simple. This casserole was born out of that desire, proving that delicious, memorable meals are totally achievable, even when life gets hectic.

Why You’ll Love This Easy Stuffed Pepper Casserole

This stuffed pepper casserole is a total game-changer! You’ll love how simple it is – seriously, dump and bake! It’s a perfect ground beef dinner that tastes just like the real deal, but without any of the stuffing hassle. Plus, it’s a fantastic cheesy family dinner that even the pickiest eaters devour. It’s super quick, making it ideal for a weeknight comfort food fix, and it’s also great for meal prep!

Ingredients for Your Stuffed Pepper Casserole

Alright, let’s talk ingredients for this absolute dream of a stuffed pepper casserole. You’re going to need a pound of good old ground beef – don’t skimp there! Grab one onion and chop it up, along with two bell peppers. You can use any color peppers you like, but I usually go for green and red for that classic stuffed pepper look. Don’t forget about two cloves of garlic, minced up nice and fine. For seasonings, we’re keeping it simple with a teaspoon of salt and half a teaspoon of black pepper. The magic part comes from a big 28-ounce can of diced tomatoes (undrained, of course!) and one 15-ounce can of tomato sauce. And the pièce de résistance? About a cup of cooked rice and a cup of shredded cheddar cheese for that gooey, cheesy topping.

Ingredient Notes and Substitutions for Stuffed Pepper Casserole

So, let’s chat about a few ingredient bits and bobs to make this unstuffed pepper casserole absolutely sing! When it comes to tomatoes, I really love using diced tomatoes with their juice because it adds so much flavor and moisture to the whole dish. If you wanted to switch it up, crushed tomatoes would totally work too, maybe just give them a quick pulse in the blender if they’re super chunky. Now, for the star protein, while ground beef is classic, don’t even hesitate to swap it out! Ground turkey or chicken are fantastic options if you’re looking for something a little lighter, or if they’re just what you have on hand. I actually have another recipe for a Ground Turkey Zucchini Skillet that uses turkey, so you know it’s good! And for the rice, make sure it’s cooked before you add it. I usually use white rice because it’s quick, but brown rice works great too if you have it. Just cook it according to the package directions before stirring it in!

How to Make Stuffed Pepper Casserole: Step-by-Step

Okay, let’s get this amazing stuffed pepper casserole into the oven! It really is as simple as it sounds. I love watching it all come together, it makes me feel like a kitchen wizard even though it’s so easy. Follow these steps and you’ll have a fantastic meal ready in no time.

Preheating and Browning the Beef for Your Stuffed Pepper Casserole

First things first, let’s get that oven going. Crank it on up to 375°F (190°C). While it’s heating, grab a big skillet and toss in your ground beef and chopped onion. Cook it over medium-high heat, breaking up the beef as it browns. Once it’s all cooked through, just drain off any extra grease. Nobody wants a greasy casserole, right?

Adding Vegetables and Seasonings to the Stuffed Pepper Casserole Base

Now for the good stuff! Toss in your chopped bell peppers and minced garlic with the beef and onions. Let that cook for about 5 minutes, just until the peppers get a little tender. You don’t want them mushy, just softened. Then, stir in your salt, pepper, the entire can of diced tomatoes (juice and all!), and the tomato sauce. Give it all a good stir and let it come to a nice simmer. It’s starting to smell amazing already!

Incorporating Rice and Preparing the Stuffed Pepper Casserole for Baking

Almost there! Now, pour in your cooked rice and stir it all together. This is where it really starts to look like a hearty meal. Once everything is mixed nicely, pour this wonderful mixture right into your baking dish. I usually use a standard 9×13 inch dish for this, it’s the perfect size.

Baking and Finishing Your Cheesy Stuffed Pepper Casserole

Now for the grand finale! Sprinkle that shredded cheddar cheese evenly all over the top. Make sure to get it into all the nooks and crannies. Pop that dish into your preheated oven and let it bake for about 20 to 25 minutes. You’re looking for that cheese to be all melted and bubbly and just gorgeous. Once it’s done, let it rest for a few minutes before digging in. Trust me, it’s worth the wait!

Tips for the Best Stuffed Pepper Casserole

Okay, so you’ve got the recipe, but let’s talk making this stuffed pepper casserole absolutely *perfect*. Little things make a big difference! For your peppers, honestly, grab whatever colors you love. Green peppers give that classic, slightly grassy flavor, but red, yellow, or orange ones are sweeter and oh-so-pretty. Just make sure they’re chopped into bite-sized pieces so they cook nicely. And the rice? Make sure it’s already cooked before you add it to the pan mixture! I usually aim for it to be *al dente*, not too mushy, because it’ll keep cooking in the oven. For that dreamy cheese blanket on top, shredding your own cheddar from a block gives you way better melt than the pre-shredded stuff. It has anti-caking agents in it that can sometimes keep it from getting super gooey. For more ideas on making your cooking shine, you can always check out my blog for all sorts of kitchen inspo!

Make-Ahead and Meal Prep for Stuffed Pepper Casserole

This stuffed pepper casserole is an absolute dream for busy schedules. You can totally prep it ahead of time! Just follow the steps up to pouring the mixture into the baking dish, but skip the cheese and baking. Cover it tightly with plastic wrap and pop it in the fridge for up to 2 days. When you’re ready to bake, just take it out, sprinkle with cheese, and bake as usual, maybe adding a few extra minutes to the cooking time. If you want to freeze it, assemble it in a freezer-safe dish, cover tightly, and freeze for up to 3 months. Just thaw it in the fridge overnight before baking. It’s the perfect example of how you can make delicious, no-fuss meals happen even on your craziest days, just like with my weeknight dinners!

Serving Suggestions for Your One Pot Casserole

This hearty stuffed pepper casserole is practically a meal in itself, but I love pairing it with something simple and fresh! A light side salad with a tangy vinaigrette is perfect for cutting through the richness. Or, if you’re looking for something warm, a simple bowl of soup, like my easy tomato basil, makes it feel extra cozy. For more ideas on what to serve, check out my soups and salads section! It truly shines as a complete dinner thanks to how easy this one pot casserole is to make!

Frequently Asked Questions about Stuffed Pepper Casserole

Got questions about this amazing stuffed pepper casserole? I’ve got answers! It’s funny how often people ask about making it vegetarian – and yes, you absolutely can! Just swap the ground beef for extra veggies like mushrooms, zucchini, or even some lentils. Or, try using a plant-based ground instead. It’s still a super satisfying cheesy family dinner. People also ask if they can freeze it, and the answer is a big fat YES! Assemble the casserole as directed (without baking), cover it super well, and freeze for up to 3 months. Thaw overnight in the fridge before baking. As for the rice, I usually just use regular white rice that’s been cooked, but brown rice works beautifully too if you prefer. Just make sure it’s cooked before you add it in, otherwise, it might get too mushy. This makes it a perfect unstuffed pepper casserole option for busy weeks! For more on how I approach cooking, you can always check out my about page!

Nutritional Information for Stuffed Pepper Casserole

Just a friendly heads-up, the nutritional info is always an estimate since we all use slightly different ingredients! This stuffed pepper casserole typically comes in around 450 calories per serving. You’re looking at about 25g of fat, 25g of protein, and 30g of carbs. Remember, these numbers can change based on the type of beef you use, the amount of cheese, or any swaps you make. For a more detailed breakdown and disclaimer, you can always peek at my disclaimer page.

Share Your Stuffed Pepper Casserole Creations!

I absolutely LOVE hearing from you guys! If you make this stuffed pepper casserole, please, please leave a comment down below and let me know what you thought. Did you add anything special? Did the kids gobble it up? Snap a pic and tag me on Facebook – I’d love to see your version! You can find me over at Pure Cooking Joy on Facebook. Happy cooking!

Print

Easy Stuffed Pepper Casserole

Close-up of a freshly baked stuffed pepper casserole with melted cheese, ground beef, and peppers.

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Enjoy all the flavors of stuffed peppers in a simple, cheesy casserole. This one-pan meal is perfect for busy weeknights and makes great leftovers.

  • Author: purejoyalex
  • Prep Time: 15 min
  • Cook Time: 30 min
  • Total Time: 45 min
  • Yield: 6 servings 1x
  • Category: Dinner
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 pound ground beef
  • 1 onion, chopped
  • 2 bell peppers, chopped
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 (28 ounce) can diced tomatoes, undrained
  • 1 (15 ounce) can tomato sauce
  • 1 cup cooked rice
  • 1 cup shredded cheddar cheese

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. In a large skillet, brown the ground beef with the chopped onion over medium-high heat. Drain off any excess grease.
  3. Stir in the chopped bell peppers and minced garlic. Cook for 5 minutes, or until the peppers are slightly softened.
  4. Add the salt, black pepper, diced tomatoes (with their juice), and tomato sauce to the skillet. Bring the mixture to a simmer.
  5. Stir in the cooked rice.
  6. Pour the mixture into a 9×13 inch baking dish.
  7. Sprinkle the shredded cheddar cheese evenly over the top.
  8. Bake for 20-25 minutes, or until the cheese is melted and bubbly.
  9. Let it rest for a few minutes before serving.

Notes

  • For a spicier casserole, add a pinch of red pepper flakes with the other seasonings.
  • You can substitute ground turkey or chicken for the ground beef.
  • This casserole is a great option for meal planning.

Nutrition

  • Serving Size: 1 serving
  • Calories: 450
  • Sugar: 10g
  • Sodium: 900mg
  • Fat: 25g
  • Saturated Fat: 10g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 5g
  • Protein: 25g
  • Cholesterol: 90mg

Did you make this recipe?

Share a photo and tag us — we can't wait to see what you've made!

Image placeholder

Hi, I'm Alex! I believe incredible food doesn't have to be complicated. Here at Pure Cooking Joy, I share delicious, approachable recipes designed to bring happiness back into your kitchen. Let's get cooking!

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

1 Shares
Tweet
Pin1
Share