Stuffed Pepper Casserole takes all the comforting flavors of classic stuffed bell peppers and turns them into an easy, one-skillet meal. Stuffed peppers have a long, global history: Hungarians have töltött paprika, Greeks have gemista, Spaniards have pimientos rellenos, and Mexican cooks have chiles rellenos.
In American kitchens, stuffed bell peppers filled with meat, rice, tomato sauce, and cheese became a beloved weeknight staple in the mid-20th century. This casserole keeps every bit of that flavor while skipping the time-consuming work of hollowing and stuffing individual peppers.
Flavorful Italian sausage is browned until golden, then cooked with colorful chopped bell peppers until they’re crisp-tender and sweet. Chicken broth deglazes the pan, lifting all the savory browned bits, while salsa or tomato sauce adds tangy, zesty flavor. Rinsed long-grain rice simmers right in the skillet, soaking up the seasoned liquid until tender and fluffy. A final blanket of melted mozzarella ties everything together into a cheesy, comforting dish. It’s a hearty, family-friendly dinner that comes together in about 35 minutes, with only one pan to wash.
Why People Will Love Stuffed Pepper Casserole Recipe
All the flavor of stuffed peppers: Sausage, peppers, rice, tomato, and cheese without the fuss of stuffing.
One-skillet meal: Everything cooks in a single pan for easy cleanup.
Ready in about 35 minutes: Perfect for busy weeknights.
Flavorful Italian sausage: Adds savory, herby, slightly spicy flavor.
Sweet, tender peppers: Colorful bell peppers add sweetness and vibrant color.
Rice cooks right in the pan: It absorbs all the savory flavors as it simmers.
Melty mozzarella topping: Creates a gooey, cheesy finish.
Salsa shortcut: Adds zesty, tangy flavor without extra chopping.
Kid-friendly: Cheesy and mild, it’s a family favorite.
Budget-friendly: Simple, affordable ingredients feed a family.
Great for meal prep: Reheats beautifully for lunches.
Customizable: Easy to swap the meat, cheese, or seasonings.
Key Ingredients
Italian sausage: The flavorful base. Seasoned with fennel, garlic, and herbs, it adds rich, savory flavor. Use mild or hot depending on your preference.
Bell peppers: The star vegetable. Red, yellow, and orange peppers are sweeter, while green peppers are slightly more bitter and earthy. A mix adds beautiful color.
Low-sodium chicken broth: Cooks the rice and adds savory depth while keeping the salt in check.
Salsa or tomato sauce: Salsa adds zesty, tangy, slightly spicy flavor, while tomato sauce gives a more classic stuffed-pepper taste.
Long-grain white rice: Cooks up fluffy and tender, absorbing the seasoned liquid.
Mozzarella cheese: Melts into a gooey, stretchy topping.
Salt and black pepper: Season and balance the flavors.
Expert Tips
Brown the sausage well: Let it develop a golden crust for richer flavor.
Drain excess fat if needed: If your sausage releases a lot of fat, spoon off some before adding the peppers.
Use a mix of pepper colors: Combining red, yellow, orange, and green adds color and balanced sweetness.
Don’t overcook the peppers: Cook them until crisp-tender, since they’ll soften further as the rice simmers.
Scrape up the fond: The browned bits on the bottom of the pan add incredible flavor.
Rinse the rice: Rinsing removes excess starch for fluffier rice that doesn’t clump.
Use a tight-fitting lid: This traps steam so the rice cooks evenly.
Don’t lift the lid too often: Lifting it lets out steam and can slow the cooking.
Check the liquid: If the rice isn’t tender but the liquid is gone, add a splash of broth and keep simmering.
Add onion and garlic: Sauté a diced onion and a few garlic cloves with the peppers for extra depth.
Season boldly: Add Italian seasoning, smoked paprika, or red pepper flakes for more flavor.
Broil for a golden top: If your skillet is oven-safe, broil for 2–3 minutes after adding the cheese.
Stuffed Pepper Casserole
Ingredients:
Ground Italian sausage: 375 g (about 13 oz, one small package), casings removed
Bell peppers: 2 cups, chopped (any color)
Low-sodium chicken broth: 2 cups
Salsa or tomato sauce: 1 cup
Salt: ¾ teaspoon
Black pepper: a pinch
Long-grain white rice: 1 cup, rinsed
Mozzarella cheese: 1 cup, shredded
Instructions
1. Brown the sausage and peppers.
In a large, deep skillet with a lid, cook the sausage over medium-high heat, breaking it up as it browns.
Add the bell peppers and cook for about 5 minutes, until crisp-tender.
2. Add the broth and seasonings.
Pour in the chicken broth and scrape up any browned bits from the bottom of the pan with a wooden spoon.
Stir in the salsa (or tomato sauce), salt, and pepper.
3. Add the rice.
Rinse the rice well under cold water until the water runs mostly clear, then stir it into the skillet.
Bring everything to a simmer.
4. Simmer until tender.
Cover the skillet, turn the heat down slightly, and let it simmer for 15–20 minutes, until the rice is cooked through and most of the liquid is absorbed.
5. Add the cheese and rest.
Sprinkle the mozzarella evenly over the top, cover again, and let it sit off the heat for 5 minutes, until the cheese melts.
Serve warm.
Important Notes When Making Stuffed Pepper Casserole
Cook sausage thoroughly: Pork sausage should reach an internal temperature of 160°F (71°C).
Rice type matters: This recipe works best with long-grain white rice. Brown rice needs more liquid and a longer cooking time.
Watch the salt: Italian sausage, salsa, and cheese are salty. Consider reducing the added salt, especially if using salsa.
Heat level: Hot Italian sausage or spicy salsa will add more heat. Use mild versions for a family-friendly dish.
Skillet size: Use a large, deep skillet with a lid so everything fits and cooks evenly.
Storage: Refrigerate leftovers in an airtight container for up to 3–4 days.
Reheating: Add a splash of broth or water before reheating to keep the rice moist.
Freezing: Freezes well for up to 3 months. Thaw overnight before reheating.
Gluten-free note: Naturally gluten-free if your sausage, broth, and salsa are gluten-free.
Allergens: Contains dairy (mozzarella).
How to Enjoy Stuffed Pepper Casserole After Cooking
Serve it warm. Spoon the casserole onto plates or into bowls right after the cheese melts.
Add finishing touches.
Chopped fresh parsley or basil
Extra shredded mozzarella or Parmesan
A pinch of red pepper flakes
A dollop of sour cream
Sliced green onions
A drizzle of hot sauce
Pair with sides.
Green salad: A crisp salad with Italian dressing.
Garlic bread: Perfect for scooping up every bite.
Roasted vegetables: Zucchini, broccoli, or green beans.
Steamed broccoli: A simple, fresh side.
Caesar salad: A classic pairing.
Try different twists.
Mexican-style: Use salsa, add black beans and corn, and top with cheddar or pepper jack.
Italian-style: Use tomato sauce, add Italian seasoning, and top with mozzarella and Parmesan.
Cheesy: Add a layer of extra cheese and broil until bubbly.
Pair with drinks. A medium-bodied red wine like Chianti or Sangiovese, iced tea, lemonade, or sparkling water.
Store and reheat.
Refrigerate: Store in an airtight container for up to 3–4 days.
Microwave: Add a splash of water, cover, and heat until warmed through.
Stovetop: Reheat in a skillet with a little broth.
Freeze: Portion into containers for up to 3 months.
Repurpose leftovers.
Stuff the mixture into halved bell peppers, top with cheese, and bake.
Wrap in tortillas for burritos.
Serve in lettuce cups for a lighter meal.
Nutrition Information
Estimated per serving, based on 4 servings, made with 375 g of pork Italian sausage (fat not drained), jarred salsa, low-sodium chicken broth, ¾ teaspoon of salt, long-grain white rice, and 1 cup of mozzarella.
Calories: 623 kcal | Total Fat: 36.3 g | Saturated Fat: 14.1 g | Monounsaturated Fat: 14.8 g | Polyunsaturated Fat: 4.2 g | Cholesterol: 93 mg | Sodium: 1,700–1,950 mg (depending on sausage, salsa, and added salt) | Total Carbohydrates: 46.6 g | Dietary Fiber: 3.1 g | Sugars: 5.5 g | Protein: 25.3 g
Note: Sodium is high because Italian sausage, salsa, and cheese are all salty, plus the added salt. Reducing the salt to ¼ teaspoon lowers sodium by about 290 mg per serving. Draining excess sausage fat can save about 90 calories and 10 g of fat per serving. Using turkey Italian sausage reduces each serving by roughly 150 calories.
Smart FAQs About This Recipe
Can I use ground beef instead of Italian sausage?
Yes. Use 1 pound of ground beef and add 1 teaspoon of Italian seasoning, ½ teaspoon of garlic powder, and a pinch of fennel seeds for similar flavor.
Should I use salsa or tomato sauce?
Both work. Salsa adds zesty, slightly spicy flavor, while tomato sauce gives a more traditional stuffed pepper taste.
Can I use brown rice?
Yes, but increase the broth by ½ cup and simmer for 40–45 minutes, or use precooked brown rice and reduce the liquid.
Can I use a different cheese?
Absolutely. Cheddar, pepper jack, provolone, or a Mexican cheese blend all work well.
Is this casserole spicy?
It depends on the sausage and salsa. Use mild versions for a gentle flavor or hot versions for more heat.
Why is my rice still crunchy?
The liquid may have evaporated too quickly, or the lid wasn’t tight enough. Add a splash of broth, cover, and simmer a few more minutes.
Can I bake it in the oven?
Yes. After adding the rice and liquid, transfer the mixture to a covered baking dish and bake at 375°F (190°C) for 35–40 minutes, until the rice is tender. Top with cheese and bake uncovered for 5 more minutes.
Can I use precooked rice?
Yes. Use about 3 cups of cooked rice, reduce the broth to ½ cup, and simmer just until heated through.
Can I make it ahead of time?
Yes. Make it up to 2 days ahead and refrigerate. Reheat gently with a splash of broth, then top with fresh cheese.
Can I add other vegetables?
Absolutely. Onions, zucchini, mushrooms, spinach, or corn all make great additions.