Italian Sausage and Pepper Casserole

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Hey there, fellow food lover! If you’re on the lookout for a dish that’s packed with bold flavors and comfort, then this Italian Sausage and Pepper Casserole is about to become your new go-to. Picture this: juicy, perfectly seasoned Italian sausages, sweet bell peppers, and onions all baked together in a savory, herby sauce. The result? A warm, satisfying casserole that feels like a cozy hug on a plate.

This is one of those dishes that’s going to make you feel like a kitchen superstar, but with minimal effort. Trust me, whether you’re cooking for a family dinner, a weekend get-together, or simply craving something hearty, this casserole will not disappoint. So, let’s get cooking!

Why You’ll Love Italian Sausage and Pepper Casserole

This dish isn’t just about the ingredients—it’s about creating a meal that brings people together. Here’s why it’s a favorite:

Versatile: Whether it’s a weeknight dinner or a crowd-pleasing dish for a party, this casserole fits the bill. You can easily double the recipe if you’re feeding a crowd, or just make enough to enjoy as leftovers for lunch the next day.

Budget-Friendly: You don’t need to break the bank to make something delicious. The ingredients are simple, affordable, and easy to find at any grocery store, making this casserole a wallet-friendly option for a satisfying meal.

Quick and Easy: You’ll love how easy this dish is to prepare! No complicated steps or lengthy processes—just toss everything together and let the oven work its magic. It’s a one-pan wonder that anyone can pull off, even if you’re a beginner in the kitchen.

Customizable: Want to make it a little spicier? Throw in some red pepper flakes! Prefer a milder version? Simply adjust the seasoning. You can make this casserole your own, depending on what you like.

Crowd-Pleasing: Whether you’re feeding picky eaters or seasoned foodies, this casserole is a guaranteed crowd-pleaser. The balance of savory sausage, sweet peppers, and hearty sauce makes it a hit with everyone.

Ingredients

Here’s the magic of this casserole—it’s made with just a few simple ingredients that come together to create something extraordinary:

  • Italian Sausages: The star of the show. These sausages add bold flavor and rich, savory goodness. Opt for spicy or mild, depending on your preference.
  • Bell Peppers: Sweet, juicy bell peppers give the dish a pop of color and a subtle crunch. Feel free to mix up the colors—red, green, yellow, or orange!
  • Onions: Sweet onions add a layer of caramelized goodness to the casserole. The onions soften beautifully in the oven, releasing their natural sweetness.
  • Garlic: A must-have to bring all the flavors to life. The garlic gives the dish that fragrant, savory kick.
  • Crushed Tomatoes: This is the base of the casserole’s sauce. It’s tangy, rich, and the perfect way to bind everything together.
  • Italian Seasoning: A classic blend of herbs that gives this casserole its unmistakable Italian flavor. It’s the perfect seasoning for this dish!
  • Mozzarella Cheese: The final touch—melted mozzarella on top creates that ooey-gooey, cheesy layer that brings everything together.

(Note: The full ingredients list, including measurements, is provided in the recipe card below.)

Instructions

Let’s dive into the steps to create this flavorful masterpiece:

Preheat Your Oven

Start by preheating your oven to 375°F (190°C). Preheating is essential to ensure that your casserole cooks evenly and the flavors develop just right.

Cook the Sausages

In a large skillet over medium heat, cook the Italian sausages until they’re browned on all sides. You want them nice and crispy on the outside but still juicy inside. Once they’re done, remove them from the pan and slice them into bite-sized pieces.

Sauté the Vegetables

In the same skillet, add a little olive oil if needed, then toss in the onions, bell peppers, and garlic. Sauté until the veggies soften and become fragrant. This step really helps bring out the natural sweetness of the onions and peppers.

Assemble the Casserole

In a large baking dish, combine the sliced sausages, sautéed vegetables, crushed tomatoes, and Italian seasoning. Give it a good mix to make sure everything is evenly distributed. Top it off with a generous layer of shredded mozzarella cheese.

Bake to Perfection

Cover the baking dish with aluminum foil and bake for about 20 minutes. Then, remove the foil and bake for an additional 10 minutes or until the cheese is bubbly and golden brown. The sausage should be fully cooked, and the flavors should have melded together beautifully.

Finishing Touches

Once it’s out of the oven, let it cool for a few minutes before serving. The cheesy, saucy goodness will still be bubbling, so be careful not to burn yourself as you dig in!

Serve and Enjoy

Serve your casserole warm, and enjoy the comforting, savory flavors in every bite. This dish is perfect on its own, or you can pair it with a side salad or crusty bread to soak up the delicious sauce.

How to Serve Italian Sausage and Pepper Casserole

This casserole is hearty enough to stand on its own, but here are a few side ideas to make your meal even better:

  • Crisp Green Salad: Pair it with a fresh salad, like a simple mixed green salad with balsamic vinaigrette, for a refreshing contrast to the rich casserole.
  • Garlic Bread: A warm, buttery slice of garlic bread will be perfect for soaking up all that tasty sauce.
  • Roasted Vegetables: If you want to add more color and nutrition to your plate, roasted veggies like zucchini, carrots, or asparagus would complement this dish beautifully.
  • Polenta or Rice: Serve it with a side of creamy polenta or rice to help balance out the flavors.

Additional Tips

Here are some extra tips to help you get the most out of this recipe:

  • Prep Ahead: You can cook the sausage and sauté the veggies a day ahead to save time on the day you plan to bake the casserole. Just store them in the fridge until you’re ready.
  • Spice It Up: If you like a little heat, add a pinch of red pepper flakes or a dash of hot sauce to the casserole.
  • Make It Your Own: Feel free to swap in different vegetables or even add some mushrooms for an extra earthy flavor. You can also use chicken sausage if you prefer a lighter option.
  • Storage Tips: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven to keep the casserole’s texture intact.

FAQ Section

Q1: Can I use a different kind of sausage?
A1: Absolutely! You can use chicken sausage, turkey sausage, or even vegetarian sausage. Just make sure to adjust the cooking time as needed.

Q2: Can I make this casserole ahead of time?
A2: Yes, this is a great make-ahead dish! Assemble the casserole and store it in the fridge for up to 24 hours before baking.

Q3: How do I store leftovers?
A3: Store any leftovers in an airtight container in the refrigerator for up to 3 days. You can reheat it in the oven to keep the cheese melted and the sausage juicy.

Q4: Can I freeze this casserole?
A4: Yes, this casserole freezes beautifully! Just assemble it, cover tightly, and freeze for up to 3 months. When you’re ready to eat, thaw overnight in the fridge and bake as directed.

Q5: How can I make this dish healthier?
A5: You can use lean turkey sausage, skip the cheese, or add more veggies to make it lighter without sacrificing flavor.

Conclusion

There you have it—Italian Sausage and Pepper Casserole that’s full of rich, savory flavors and guaranteed to satisfy. Whether you’re cooking for a family dinner or making something comforting for yourself, this dish is a game-changer. It’s simple, delicious, and perfect for any occasion. So, give it a try—you’re going to love every bite!

Enjoy your cooking adventure, and don’t forget to share it with friends and family. It’s too good to keep to yourself!

Print

Italian Sausage and Pepper Casserole

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This Italian Sausage and Pepper Casserole is a savory, cheesy delight, featuring flavorful Italian sausage, sautéed bell peppers, onions, and garlic, topped with gooey mozzarella and Parmesan cheeses. Perfect for a weeknight dinner or meal prep, this dish is hearty, flavorful, and easy to make

  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 6 servings 1x
  • Category: Dinner, Casserole
  • Method: Baking, Sautéing
  • Cuisine: Italian
  • Diet: Vegetarian

Ingredients

Scale
  1. For the Casserole:

    • 1 lb Italian sausage (mild or spicy, depending on your preference)
    • 2 tablespoons olive oil (for sautéing)
    • 2 bell peppers, sliced (red and green work well)
    • 1 large onion, sliced
    • 2 cloves garlic, minced
    • 1 can (14.5 oz) diced tomatoes (with Italian seasoning, or regular if you prefer)
    • 1/2 cup marinara sauce (optional, for extra depth)
    • 1/2 teaspoon dried oregano
    • 1/2 teaspoon dried basil
    • 1/4 teaspoon red pepper flakes (optional, for heat)
    • Salt and pepper, to taste
    • 1 1/2 cups shredded mozzarella cheese
    • 1/2 cup grated Parmesan cheese

    For the Optional Topping:

    1. Fresh basil or parsley, chopped (for garnish)

Instructions

  • Cook the Sausage: Preheat your oven to 375°F (190°C). In a large skillet, heat olive oil over medium-high heat. Add the Italian sausage to the skillet, breaking it up into crumbles as it cooks. Cook until browned and fully cooked, about 6-8 minutes. Drain any excess fat and set aside.
  • Sauté the Vegetables: In the same skillet, add the sliced bell peppers and onions. Sauté for 5-7 minutes, or until they are softened and slightly caramelized. Add the minced garlic and sauté for another 1 minute until fragrant.
  • Combine the Ingredients: Add the cooked sausage back into the skillet with the peppers and onions. Stir in the diced tomatoes, marinara sauce (if using), oregano, basil, red pepper flakes, salt, and pepper. Let the mixture simmer for 5 minutes to combine the flavors.
  • Assemble the Casserole: Transfer the sausage and vegetable mixture into a greased 9×13-inch casserole dish. Sprinkle the mozzarella cheese and Parmesan cheese evenly over the top.
  • Bake the Casserole: Cover the casserole with foil and bake for 20 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly and the top is golden brown.

 

  • Serve & Garnish: Remove from the oven and let it cool for a few minutes before serving. Garnish with fresh basil or parsley for added freshness and flavor.

Notes

  • If you prefer a spicier dish, use spicy Italian sausage or add extra red pepper flakes.
  • To make it lower-carb, serve without the marinara sauce or over a bed of cauliflower rice.

 

  • This casserole can be made ahead of time and stored in the fridge for up to 3 days, or frozen for up to 3 months.

Nutrition

  • Serving Size: 1/6 of casserole
  • Calories: ~350 kcal
  • Sugar: 6g
  • Sodium: 750mg
  • Fat: 25g
  • Saturated Fat: 9g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 10g
  • Fiber: 3g
  • Protein: 22g
  • Cholesterol: 50mg

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