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- 1 pound Italian sausage - 2 bell peppers (red and yellow) - 1 medium onion - 3 cloves garlic - 1 can (14 oz) diced tomatoes - 1 cup cooked quinoa or rice - 1 teaspoon dried oregano - 1 teaspoon dried basil - 1/2 teaspoon red pepper flakes (optional) - Salt and pepper to taste - 1 cup shredded mozzarella cheese - Fresh basil leaves for garnish Italian sausage brings a rich, savory flavor to this dish. You can choose mild or spicy based on your taste. I love using both red and yellow bell peppers for color and sweetness. The medium onion adds a nice base flavor. Garlic boosts the taste even more, adding depth. Diced tomatoes bring juiciness and tang. You can use quinoa or rice as a hearty base. For seasonings, dried oregano and basil give a classic Italian touch. Red pepper flakes add heat if you like spice. Salt and pepper balance all the flavors. Topping it with shredded mozzarella cheese makes it melty and delicious. Fresh basil as a garnish adds freshness and a pop of color. This mix of ingredients creates a dish that is hearty and flavorful. Each bite is a warm hug on a plate. {{ingredient_image_1}} - Preheat your oven to 375°F (190°C). This helps cook the dish evenly. - In a large skillet over medium heat, cook 1 pound of Italian sausage. Break it apart with a wooden spoon. Cook until it is browned and fully cooked, which takes about 5-7 minutes. If there’s extra grease, remove it. - Add 2 sliced bell peppers and 1 sliced medium onion to the skillet. Sauté these until they soften, about 5-6 minutes. - Next, incorporate 3 minced cloves of garlic. This will add a nice flavor to your dish. - Stir in 1 can of diced tomatoes (with juice), 1 cup of cooked quinoa or rice, 1 teaspoon of dried oregano, 1 teaspoon of dried basil, and red pepper flakes if you want some heat. Season with salt and pepper. Mix everything well. - Transfer the mixture to a greased 9x13-inch baking dish. Spread it evenly. Top it with 1 cup of shredded mozzarella cheese. - Cover the dish with aluminum foil. Bake it in the preheated oven for 25 minutes. After that, remove the foil. Bake for another 10-15 minutes. You want the cheese bubbly and golden brown. - Once done, take it out of the oven and let it cool for a few minutes. Garnish with fresh basil leaves before serving. - Choosing the right sausage: Pick Italian sausage that suits your taste. You can choose mild for a gentle flavor or spicy for a kick. The sausage brings the heartiness to this dish. - Ensuring even cooking: Cook the sausage in a large skillet. Break it apart with a wooden spoon as it cooks. This ensures it browns evenly and mixes well with the veggies later. - Adding more spices: If you want more flavor, add spices like garlic powder or Italian seasoning. A little extra red pepper flakes can also boost the heat. Taste as you go to find your perfect mix! - Suggestions for cheese alternatives: You can swap mozzarella with provolone or cheddar. Each cheese brings its own flavor, so feel free to experiment. - Serving suggestions: Serve the casserole in bowls for a warm, cozy feel. Add a side of crusty bread to soak up the flavors. It makes for a complete meal! - Garnishing tips: Top each bowl with fresh basil leaves. This adds color and a fresh taste that brightens the dish. You can also sprinkle some extra cheese on top for added richness. Pro Tips Use Fresh Ingredients: Fresh bell peppers and onions enhance the flavor and texture of the dish, making it more vibrant and tasty. Customize Your Spice Level: Adjust the amount of red pepper flakes based on your heat preference, or opt for spicy Italian sausage for an extra kick. Make Ahead: This casserole can be prepared in advance and stored in the refrigerator for up to 2 days. Just reheat before serving! Cheese Variations: Experiment with different types of cheese, such as provolone or cheddar, for a unique twist on the classic mozzarella topping. {{image_2}} You can easily make this dish meat-free. Substitute the Italian sausage with plant-based sausage. Many brands offer tasty options that mimic the flavors of traditional sausage. You can also use mushrooms for a hearty texture. The earthy taste of mushrooms pairs well with the peppers and spices. If you want to change the base, try brown rice or couscous instead of quinoa. Brown rice gives a nutty flavor and is very filling. Couscous cooks faster and adds a light, fluffy texture. Both options work well with the sauce and ingredients. Feel free to add more vegetables to the mix. Zucchini or mushrooms can enhance the dish. They soak up the flavors and add nutrition. You can also play with different herbs. Thyme or rosemary can give a nice twist. Don't be afraid to experiment and find your favorite combo. To store leftovers, let the casserole cool first. Then, cover it tightly with plastic wrap or transfer it to an airtight container. Place it in the refrigerator. It can stay fresh for up to three days. When you're ready to eat, check for any off smells or discolored bits before reheating. For longer storage, you can freeze the casserole. First, let it cool completely. Then, cut it into portions and wrap each piece in plastic wrap. Place the wrapped pieces in a freezer-safe bag or container. This way, you can enjoy the casserole for up to three months. Make sure to label the bag with the date so you know when to use it. Reheating is easy! You can use the oven or microwave. To use the oven, preheat it to 350°F (175°C). Place the casserole in a baking dish, cover it with foil, and heat for about 20 minutes. For the microwave, place a single serving on a plate. Heat it on high for 2-3 minutes. Check if it’s hot all the way through. If not, heat in 30-second bursts until warm. Enjoy the flavors again! Yes, you can prepare this casserole ahead of time. Cook the sausage and veggies, then mix them with the other ingredients. Place everything in a baking dish, cover it, and store it in the fridge. You can bake it the next day. Just remember to adjust the baking time. If it's cold from the fridge, it may take a few extra minutes. You can try other proteins like ground turkey or chicken. For a vegetarian option, use plant-based sausage. Ground beef or pork also works well. Just make sure to cook the protein fully before adding it to the casserole. Each protein will give a unique flavor to the dish. Yes, this casserole can be gluten-free. Use gluten-free sausage and ensure the quinoa or rice is certified gluten-free. The rest of the ingredients, like tomatoes and spices, are naturally gluten-free. This makes it easy to enjoy this dish without gluten, while still tasting great. In this post, we explored a tasty casserole with Italian sausage, bell peppers, and quinoa. We went through preparation steps, cooking tips, and flavor variations to make your dish shine. Remember to pick quality ingredients for the best results. Experiment with different grains and vegetables for fun twists. Whether you make it ahead or freeze leftovers, this casserole is convenient and delicious. Enjoy a hearty meal that you can share with family and friends. Happy cooking!

Sizzling Italian Sausage & Peppers Casserole

A hearty casserole featuring Italian sausage, bell peppers, and cheese, perfect for a comforting meal.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Course Main Course
Cuisine Italian
Servings 6
Calories 400 kcal

Ingredients
  

  • 1 pound Italian sausage (mild or spicy, based on preference)
  • 2 pieces bell peppers (red and yellow), sliced
  • 1 medium onion, sliced
  • 3 cloves garlic, minced
  • 14 oz can diced tomatoes, undrained
  • 1 cup cooked quinoa or rice
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil
  • 0.5 teaspoon red pepper flakes (optional)
  • to taste Salt and pepper
  • 1 cup shredded mozzarella cheese
  • for garnish Fresh basil leaves

Instructions
 

  • Preheat your oven to 375°F (190°C).
  • In a large skillet over medium heat, cook the Italian sausage, breaking it apart with a wooden spoon until browned and fully cooked (about 5-7 minutes). Remove excess grease if necessary.
  • Add the sliced bell peppers, onion, and garlic to the skillet. Sauté until the vegetables are softened, approximately 5-6 minutes.
  • Stir in the diced tomatoes (with juice), cooked quinoa or rice, oregano, basil, red pepper flakes (if using), and season with salt and pepper. Mix well to combine all ingredients.
  • Transfer the mixture into a greased 9x13-inch baking dish, spreading it evenly. Top it with shredded mozzarella cheese.
  • Cover the dish with aluminum foil and bake in the preheated oven for 25 minutes. After that, remove the foil and bake for an additional 10-15 minutes, or until the cheese is bubbly and golden brown.
  • Remove from the oven and let it cool for a few minutes before serving. Garnish with fresh basil leaves.

Notes

Serve with crusty bread for a complete meal.
Keyword casserole, comfort food, Italian sausage, peppers