Italian Sausage & Pepper Casserole Recipe

If you’re craving a dish that bursts with robust flavors and cozy comfort, this Italian Sausage & Pepper Casserole Recipe is the perfect go-to. Combining juicy Italian sausage with colorful bell peppers, savory onions, and a rich tomato base, it bakes up into a bubbly, cheesy masterpiece that feels like a warm hug on a plate. The blend of sautéed vegetables and melty mozzarella cheese makes every bite a delicious celebration of simple ingredients coming together in the best way possible.

Ingredients You’ll Need

Getting the ingredients right is key to nailing this Italian Sausage & Pepper Casserole Recipe. Each item is straightforward yet essential, bringing unique textures, vibrant colors, and authentic Italian flavors that turn this dish from simple to sensational.

• Italian sausage (1 pound): Choose sweet or spicy depending on your preference for a flavorful and juicy protein base.
• Bell peppers (2, red and green), sliced: These add a vibrant pop of color and a sweet crunch that balances the richness of the sausage.
• Onion (1, chopped): Brings a natural sweetness and depth that complements the savory elements perfectly.
• Garlic (3 cloves, minced): For that classic aroma and punch that elevates the whole casserole.
• Diced tomatoes (1 can, 14.5 oz): Adds acidity and juiciness to keep things moist and flavorful.
• Tomato sauce (1 can, 8 oz): Deepens the tomato base and creates a luscious consistency throughout.
• Italian seasoning (1 teaspoon): A fragrant blend of herbs that ties all the flavors into a harmonious whole.
• Salt and pepper to taste: Essential for seasoning and bringing out all the natural flavors.
• Mozzarella cheese (1 cup, shredded): Melts beautifully on top, creating a golden, gooey finish.

How to Make Italian Sausage & Pepper Casserole Recipe

Step 1: Prep and Preheat

Start by preheating your oven to 375°F (190°C). This ensures it’s at the ideal temperature by the time your prepared ingredients are ready to bake. A well-preheated oven is crucial for that perfectly melted and golden mozzarella topping.

Step 2: Brown the Sausage

In a large skillet over medium heat, cook the Italian sausage until it’s beautifully browned and cooked through. Browning the sausage first builds a rich, savory flavor base that will infuse every bite of the casserole.

Step 3: Sauté the Vegetables

Add the sliced bell peppers, chopped onion, and minced garlic to the skillet with the sausage. Cook until the vegetables become tender and fragrant, about 5 to 7 minutes. This step softens the peppers and mellows the onions, creating a wonderful texture contrast.

Step 4: Combine with Tomato Base

Stir in the canned diced tomatoes, tomato sauce, and Italian seasoning. Season with salt and pepper according to your taste. This creates the rich, tangy sauce that makes the casserole so comforting and flavorful.

Step 5: Assemble the Casserole

Transfer the sausage and pepper mixture into a casserole dish, spreading it evenly. Then sprinkle the shredded mozzarella cheese evenly over the top to cover the entire surface, ensuring a cheesy crust once baked.

Step 6: Bake to Perfection

Bake in the preheated oven for 25 to 30 minutes, or until the cheese turns bubbly and golden brown. The cheese will melt into a luscious blanket that perfectly complements the savory filling below.

Step 7: Cool and Serve

Allow the casserole to cool for a few minutes before serving. This resting time helps everything set slightly, making it easier to portion out and enjoy every cheesy, saucy bite.

How to Serve Italian Sausage & Pepper Casserole Recipe

Garnishes

A sprinkle of fresh basil or parsley adds a lively green freshness that brightens every mouthful. You can also add some crushed red pepper flakes for a subtle kick if you like a bit of heat alongside the hearty flavors.

Side Dishes

This casserole pairs wonderfully with a crisp green salad or garlic bread for dipping into the rich tomato sauce. A side of roasted vegetables or a simple pasta tossed in olive oil also complements this hearty dish beautifully.

Creative Ways to Present

For a fun twist, serve this Italian Sausage & Pepper Casserole Recipe in individual ramekins, making it an impressive single-serving presentation perfect for dinner guests. Alternatively, spoon it over creamy polenta for a comforting and elegant variation.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover the casserole tightly with plastic wrap or foil and store in the refrigerator. It stays fresh for up to 3 days, making it a convenient option for quick meals later in the week.

Freezing

This casserole freezes beautifully. Portion it into freezer-safe containers and freeze for up to 2 months. Thaw overnight in the fridge before reheating to preserve those delicious sausage and pepper flavors.

Reheating

Reheat leftovers in the oven at 350°F (175°C) until warmed through and bubbly, about 15 to 20 minutes. Alternatively, microwave individual servings until hot, though the oven method helps maintain that wonderful crisp cheese topping.

FAQs

Can I use turkey sausage instead of Italian sausage?

Absolutely, turkey sausage works as a leaner alternative and still offers great flavor. Just be mindful that turkey sausage tends to be milder, so you might want to adjust seasonings accordingly.

Is it possible to make this recipe vegetarian?

Yes! Replace the Italian sausage with sautéed mushrooms, tofu, or a plant-based meat substitute. The bell peppers and tomato sauce will keep the dish hearty and satisfying.

What kind of cheese is best besides mozzarella?

Mozzarella’s melting qualities are perfect here, but you can also try provolone or a mild cheddar for a slightly different flavor and texture.

Can I prepare this casserole a day ahead?

Definitely. Assemble it the day before, cover it, and keep it refrigerated. When ready, just pop it in the oven and bake as directed. This makes it great for busy weeknights or entertaining.

How spicy is this Italian Sausage & Pepper Casserole Recipe?

The spiciness depends on the type of Italian sausage you choose. Sweet sausage will be mild and savory, while hot sausage adds a nice kick. You can always add red pepper flakes if you want to tailor the heat level.

Final Thoughts

Trust me, once you try the Italian Sausage & Pepper Casserole Recipe, it might just become your new favorite comfort food. It’s straightforward to make, packed with flavorful ingredients, and offers that magical combination of juicy sausage, tender peppers, and melted cheese. Whether you’re feeding family or hosting friends, this dish is a guaranteed crowd-pleaser that will have everyone asking for seconds.

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