Easy Stuffed Pepper Casserole Recipe for Busy Weeknights

Stuffed Pepper Casserole is the ultimate time-saving meal that combines all the rich, hearty flavors of stuffed peppers into one easy baked dish. This casserole isn’t just fast to prep—it’s perfect for busy weeknights when you don’t want to spend hours in the kitchen. With minimal prep and a ‘set-it-and-forget-it’ cooking style, you’ll have dinner on the table in just over an hour.

Traditional stuffed peppers can take forever with all the slicing, stuffing, and baking. This easy stuffed pepper casserole skips those time-consuming steps, packing the same bold flavors into a no-fuss, family-friendly meal. Trust me, once you’ve tried this shortcut recipe, you’ll never look at stuffed peppers the same way again.

Why This Stuffed Pepper Casserole Is a Game-Changer

• Time-Saving: Forget stuffing individual peppers—layer and bake everything in one dish to cut prep in half.
• Hands-Off Cooking: After just 10 minutes of prep, the oven handles the rest.
• Family-Approved: Who can resist the cheesy, hearty goodness packed with rice, veggies, and beef?
• Make-Ahead Friendly: Perfect for meal prep or reheating leftovers during a busy week.
• Customizable: Easily adapt the ingredients based on what you have on hand.

Equipment You’ll Need for This Stuffed Pepper Casserole

The beauty of this best stuffed pepper casserole is that you don’t need any fancy tools. Here’s what you’ll want to have on hand:

• Large Nonstick Skillet: Perfect for browning ground beef and sautéeing the veggies without sticking.
• 13×9-inch Baking Dish: Ensures even cooking and plenty of room for layering all the ingredients.
• Aluminum Foil: Helps lock in moisture while the rice cooks to perfection.

Quick tip: If you don’t already own a large nonstick skillet, check out budget-friendly options like carbon steel pans—they brown meat beautifully and are easy to clean!

Simple Ingredients for Stuffed Pepper Casserole

This recipe uses pantry staples and fresh ingredients that are easy to find. Here are a few highlights:

• Ground Beef: Lean beef keeps it hearty but not greasy. Sub with ground turkey or plant-based crumbles for a lighter option.
• Bell Peppers: Use a mix of green and red for a balance of sweetness and classic pepper flavor. Pre-chopped peppers save time!
• Canned Tomatoes with Green Chiles: RO-TEL adds a little kick and Tex-Mex flair. Can’t find it? Regular diced tomatoes work too.
• Cheese: A blend of Colby and pepper Jack gives this casserole the perfect creamy, zesty topping.

Stuffed Pepper Casserole at a Glance

• Prep Time: 10 minutes
• Cook Time: 1 hour 5 minutes
• Total Time: 1 hour 15 minutes
• Servings: 8 servings

Stuffed Pepper Casserole Ingredients

• Nonstick cooking spray
• 1 pound ground beef
• 1/2 onion, chopped
• 1 green bell pepper, chopped
• 1 red bell pepper, chopped
• 4 cloves garlic, minced
• Salt and freshly ground black pepper to taste
• 1 (10-ounce) can diced tomatoes with green chiles (such as RO-TEL®)
• 1 (15-ounce) can tomato sauce
• 3 tablespoons taco seasoning
• 1 1/2 cups uncooked long-grain rice
• 1 cup beef broth
• 4 ounces Colby cheese, shredded
• 4 ounces pepper Jack cheese, shredded

Step-by-Step Stuffed Pepper Casserole Instructions

1. Preheat your oven to 375°F (190°C) and spray a 13×9-inch baking dish with nonstick cooking spray.
2. In a large nonstick skillet over medium-high heat, cook the ground beef, onion, green bell pepper, red bell pepper, and garlic until the meat is browned and crumbly (about 7–10 minutes). Drain any excess fat and season with salt and pepper.
3. Stir in the can of RO-TEL, tomato sauce, and taco seasoning until everything is evenly combined.
4. Spread the uncooked rice evenly on the bottom of your prepared baking dish, then pour in the beef broth.
5. Add the beef and pepper mixture to the dish, folding it into the rice. Spread out evenly with a spatula.
6. Sprinkle the shredded Colby and pepper Jack cheeses over the top.
7. Cover the dish tightly with foil and bake for 50 minutes in the preheated oven.
8. Remove the foil and bake for an additional 5 minutes, until the cheese is golden and bubbling.

Jake’s Tips for the Best Stuffed Pepper Casserole

• Short on time? Use microwaveable ready rice instead of uncooked rice to shave off 15 minutes of cook time.
• More flavor: Swap beef broth for vegetable or chicken broth and add a splash of Worcestershire sauce for extra depth.
• Make ahead: Assemble the casserole up to a day in advance, cover, and refrigerate. Bake as directed when ready.
• Freeze it: This homemade stuffed pepper casserole freezes beautifully! Let it cool completely, then portion into freezer-safe containers.
• Reheat: Leftovers heat up perfectly in the microwave or oven—just cover to keep it from drying out.

Easy Stuffed Pepper Casserole Variations

• Vegetarian: Replace the beef with black beans or lentils and use vegetable broth instead of beef broth.
• Low-Carb: Skip the rice and use cauliflower rice to cut carbs without losing texture.
• Spicy: Add diced jalapeños or an extra sprinkle of chili powder.
• Cheese Swap: Try mozzarella or cheddar if you’re not a fan of pepper Jack.

Stuffed Pepper Casserole FAQs

Can I use instant rice for quicker prep?

Yes! Instant rice works perfectly and cuts the bake time by about 15 minutes. Just make sure to adjust the broth accordingly.

What’s the best way to store leftovers?

Store leftover casserole in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven for best results.

Can I make this quick stuffed pepper casserole dairy-free?

Absolutely—just swap the cheese for your favorite dairy-free alternatives like vegan shredded cheese.

What other meats can I use?

Ground turkey, chicken, or even sausage are all great alternatives to ground beef in this best stuffed pepper casserole.

How can I prevent the rice from overcooking?

Cover the dish tightly with foil so the rice cooks evenly without drying out or overcooking.

Now it’s your turn—give this time-saving Stuffed Pepper Casserole a try, and let me know what you think. What’s your favorite weeknight shortcut meal? Tell me in the comments below!