Italian Sausage Pepper Casserole
If you’re looking for a comforting dish that feels like a warm hug on a plate, look no further than this Italian Sausage Pepper Casserole. This recipe is not only delicious but also incredibly easy to whip up, making it perfect for busy weeknights or cozy family gatherings. The combination of savory sausage and colorful bell peppers in a rich tomato sauce, all topped with gooey melted mozzarella cheese, makes every bite a delight. It’s a meal that brings everyone together around the table, and trust me, it’s bound to become a favorite in your home.
The best part? You can easily make this casserole ahead of time and pop it in the oven when you’re ready to eat. So whether you’re feeding a hungry crowd or simply craving something hearty after a long day, this Italian Sausage Pepper Casserole has got your back.
Why You’ll Love This Recipe
- Quick Preparation: This casserole comes together in just about 40 minutes, so you can have dinner on the table without spending hours in the kitchen.
- Family-Friendly: Packed with flavors and textures that even picky eaters will love, it’s sure to please everyone at the dinner table.
- Make-Ahead Convenience: Prep it earlier in the day or freeze it for later; it’s perfect for busy schedules!
- Deliciously Filling: With hearty sausage and vibrant veggies smothered in cheese, this dish is as satisfying as it is tasty.
- Flexibility: Customize with your favorite vegetables or spices to make it uniquely yours!

Ingredients You’ll Need
Let’s gather some simple, wholesome ingredients that will make this Italian Sausage Pepper Casserole truly shine. These are pantry staples that you may already have at home!
- 1 pound Italian sausage (sweet or spicy, or mix of both)
- 2 bell peppers (red and green, sliced)
- 1 onion (chopped)
- 3 cloves garlic (minced)
- 14.5 oz diced tomatoes (1 can)
- 8 oz tomato sauce (1 can)
- 1 teaspoon Italian seasoning
- Salt and pepper (to taste)
- 1 cup shredded mozzarella cheese
Variations
One of the things I love most about this recipe is its flexibility! You can easily adapt it based on your preferences or what you have on hand.
- Swap the protein: Use ground turkey or chicken sausage instead of Italian sausage for a lighter option.
- Add more veggies: Toss in some zucchini or mushrooms for extra nutrition and flavor.
- Spice it up: If you love heat, add some red pepper flakes or diced jalapeños to give it a kick.
- Cheese choices: Experiment with different cheeses like provolone or cheddar for unique flavors.
How to Make Italian Sausage Pepper Casserole
Step 1: Preheat Your Oven
Start by preheating your oven to 375°F (190°C). This ensures that when you’re ready to bake your casserole, it’s hot and ready to go right from the get-go.
Step 2: Cook the Sausage
In a large skillet over medium heat, cook the Italian sausage for about 5-7 minutes. Break it apart with a wooden spoon until browned throughout. Cooking the sausage first allows those delicious flavors to develop before adding other ingredients.
Step 3: Sauté the Vegetables
Add the sliced bell peppers, chopped onion, and minced garlic to the skillet. Sauté everything together for about 5 minutes until the vegetables are tender. This step not only softens them but also enhances their sweetness—making your casserole even more flavorful!
Step 4: Combine Ingredients
Next, stir in the diced tomatoes, tomato sauce, Italian seasoning, salt, and pepper. Mix well to ensure all those wonderful flavors blend together beautifully.
Step 5: Transfer to Casserole Dish
Transfer the mixture into a 9×13 inch casserole dish and spread it evenly across the bottom. Spreading it out helps ensure even cooking and allows every bite to be packed with flavor.
Step 6: Add Cheese Topping
Top your mixture with shredded mozzarella cheese. Spread it evenly over the entire surface for that melty goodness we all crave!
Step 7: Bake Until Golden
Bake your casserole in the preheated oven for about 25-30 minutes. Keep an eye on it until the cheese is bubbly and golden brown at the edges—this is where magic happens!
Step 8: Serve with Love
Once baked, let the casserole cool for about 5 minutes before serving. This helps everything set nicely so each portion holds together perfectly when served.
And there you have it—a delightful Italian Sausage Pepper Casserole that’s sure to warm hearts and fill bellies! Enjoy!
Pro Tips for Making Italian Sausage Pepper Casserole
When you’re ready to make this delicious casserole, a few handy tips can help you elevate your dish to the next level!
- Use fresh ingredients: Fresh bell peppers and onions not only enhance the flavor but also add vibrant color to your casserole, making it visually appealing.
- Experiment with sausage: Try using a combination of sweet and spicy Italian sausage for a perfect balance of flavors. This will make your casserole exciting with every bite!
- Let it rest: Allowing the casserole to cool for a few minutes before serving helps it set better, making portions easier to serve without falling apart.
- Customize your cheese: While mozzarella is traditional, feel free to mix in other cheeses like provolone or fontina for a richer taste and creamier texture.
- Add extra veggies: Consider adding mushrooms or zucchini for added nutrition and flavor. This will also make your dish even heartier and more satisfying.
How to Serve Italian Sausage Pepper Casserole
Serving this Italian Sausage Pepper Casserole is as enjoyable as making it! Here are some ideas to present this hearty meal in a delightful way.
Garnishes
- Fresh basil: Chopped fresh basil sprinkled on top adds a burst of freshness and enhances the Italian flavor profile of the dish.
- Parmesan cheese: A sprinkle of grated Parmesan not only looks beautiful but lends an extra layer of savory goodness that complements the mozzarella.
Side Dishes
- Garlic bread: Perfect for soaking up the delicious sauce, garlic bread offers a crunchy contrast to the soft casserole. It’s an easy addition that everyone loves!
- Simple green salad: A light salad with mixed greens, cherry tomatoes, and a lemon vinaigrette provides a refreshing balance to the richness of the casserole.
- Roasted vegetables: Seasonal roasted vegetables such as zucchini, carrots, or asparagus not only add color but also bring additional nutrients and flavors to your meal.
- Rice or quinoa: Serving the casserole over rice or quinoa can create a more filling meal while providing a pleasant texture contrast.
Now that you have all these tips and serving suggestions at your fingertips, you’re ready to enjoy and share this delightful Italian Sausage Pepper Casserole with family and friends!

Make Ahead and Storage
This Italian Sausage Pepper Casserole is perfect for meal prep, making it easy to enjoy a delicious homemade meal throughout the week. Not only does it store well, but it also tastes fantastic even after some time in the fridge or freezer!
Storing Leftovers
- Allow the casserole to cool completely before storing.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 3 days.
Freezing
- Let the casserole cool down completely before freezing.
- Cover the dish tightly with plastic wrap or aluminum foil.
- Freeze for up to 3 months for best quality.
- Label with the date for easy tracking.
Reheating
- Thaw overnight in the refrigerator if frozen.
- Preheat your oven to 350°F (175°C).
- Cover with foil and bake for about 20-25 minutes, or until heated through.
- For a bubbly top, uncover during the last 5 minutes of baking.
FAQs
Here are some common questions you might have about this Italian Sausage Pepper Casserole:
Can I use turkey sausage instead of Italian sausage?
Absolutely! Turkey sausage is a great alternative that will still provide wonderful flavors while being lower in fat.
What can I serve with Italian Sausage Pepper Casserole?
This dish pairs beautifully with a simple green salad or some crusty bread to soak up the delicious tomato sauce.
How do I store Italian Sausage Pepper Casserole leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. For longer storage, consider freezing them.
Is Italian Sausage Pepper Casserole suitable for meal prep?
Yes! This casserole is perfect for meal prep and can be made ahead of time, stored, and reheated easily.
Final Thoughts
I hope you enjoy making this comforting Italian Sausage Pepper Casserole as much as I do! It’s truly special because it brings together vibrant flavors and hearty ingredients that make every family dinner feel like a celebration. Don’t hesitate to share your experience and any twists you add! Happy cooking!
Italian Chicken Sausage Pepper Casserole
If you’re in search of a delightful and hearty dish that brings comfort to the dinner table, look no further than this Italian Sausage Pepper Casserole. This savory dish features tender chicken sausage, vibrant bell peppers, and a rich tomato sauce, all topped with gooey mozzarella cheese. It’s an easy-to-make recipe that’s perfect for busy weeknights or family gatherings. With just about 40 minutes from start to finish, this casserole not only satisfies hunger but also warms the heart. Plus, it’s versatile enough to customize with your favorite veggies and spices, making it a meal everyone will love!
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: Serves approximately 6 people 1x
- Category: Main
- Method: Baking
- Cuisine: Italian
Ingredients
- 1 pound chicken sausage (sweet or spicy)
- 2 bell peppers (red and green, sliced)
- 1 onion (chopped)
- 3 cloves garlic (minced)
- 14.5 oz diced tomatoes (1 can)
- 8 oz tomato sauce (1 can)
- 1 teaspoon Italian seasoning
- Salt and pepper to taste
- 1 cup shredded mozzarella cheese
Instructions
- Preheat your oven to 375°F (190°C).
- In a large skillet over medium heat, cook the chicken sausage for about 5-7 minutes until browned.
- Add the sliced bell peppers, chopped onion, and minced garlic; sauté for about 5 minutes until tender.
- Stir in diced tomatoes, tomato sauce, Italian seasoning, salt, and pepper until well combined.
- Transfer the mixture into a casserole dish and spread evenly.
- Top with shredded mozzarella cheese.
- Bake for 25-30 minutes until the cheese is bubbly and golden brown.
- Let cool for 5 minutes before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 6g
- Sodium: 680mg
- Fat: 14g
- Saturated Fat: 7g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 4g
- Protein: 20g
- Cholesterol: 50mg
