Baked Penne with Sausage and Peppers
Hearty penne pasta baked with savory Italian sausage, sweet bell peppers, and a rich tomato sauce, all topped with a blanket of melted mozzarella. This comforting one-dish meal comes together in about an hour and fills the kitchen with the aroma of a classic Italian-American kitchen.
For 4 servings
- prep
Preheat the oven and prep the ingredients.
1.Preheat oven to 375°F (190°C).2.Bring a large pot of water to a boil for the pasta.3.Slice the bell peppers and onion. Mince the garlic cloves.4.Remove sausage casings and crumble the meat.5.Blanch the tomatoes, peel off the skin, and crush them by hand.TIPBlanch tomatoes by scoring a shallow X on the bottom, dropping them in boiling water for 30 seconds, then plunging into ice water. The skin slides right off. - boil · ~9 min
Cook the penne pasta.
1.Add 0.5 tsp salt to the boiling water.2.Cook penne until al dente, about 2 minutes less than package directions.3.Drain in a colander and set aside.TIPUndercooking the pasta slightly is key. It will finish cooking in the oven and absorb flavor from the sauce without turning mushy. - saute · ~7 min
Brown the italian sausage.
1.Heat a large skillet over medium-high heat.2.Add crumbled sausage and cook, breaking up with a spoon.3.Sauté until browned and cooked through, about 5-7 minutes.4.Transfer sausage to a plate with a slotted spoon, leaving the rendered fat in the pan. - saute · ~6 min
Sauté the peppers and onions.
1.Add olive oil to the same skillet with the rendered fat.2.Add sliced bell peppers and onion. Sauté over medium heat until softened, about 5 minutes.3.Add minced garlic and cook until fragrant, about 30 seconds. - simmer · ~10 min
Build and simmer the tomato sauce.
1.Stir in the crushed tomatoes and tomato paste.2.Add dried oregano, red chili flakes, and 1 pinch of salt.3.Return the browned sausage to the skillet.4.Bring to a simmer, then reduce heat to low and cook uncovered for 10 minutes, stirring occasionally.TIPLet the sauce simmer gently—don't rush it. This gives the tomatoes time to lose their raw edge and meld with the sausage drippings. - mix
Toss the pasta with the sauce.
1.Add the drained penne to the skillet with the sauce.2.Toss well until every piece of pasta is coated evenly. - assemble
Assemble the casserole.
1.Transfer the sauced pasta to a 9x13 inch baking dish.2.Spread into an even layer.3.Sprinkle shredded mozzarella evenly over the top.4.Finish with a dusting of grated parmesan cheese. - bake · ~25 min
Bake until bubbly and golden.
Place the dish on the center rack and bake at 375°F for 20-25 minutes, until the cheese is melted, bubbly, and lightly browned on top.
- rest · ~5 min
Let the dish rest before serving.
Remove from oven and let it sit for 5 minutes. The rest time helps the casserole set, making it easier to portion.
TIPIf you cut into it immediately, the sauce may be a little loose. Patience pays off with cleaner servings. - garnish
Garnish with fresh basil and serve hot.
What to keep in mind.
7 tips from the recipe — small details that make a real difference to the final dish.
- 1Use high-quality, sweet Italian sausage for the best flavor base.
- 2Do not rinse the pasta after draining; the starch helps the sauce cling.
- 3Let the sauce simmer for the full 10 minutes to deepen the tomato flavor.
- 4For a crispier top, switch the oven to broil for the last 2 minutes of baking.
- 5Make ahead: assemble the casserole, cover, and refrigerate up to 24 hours. Add 10 minutes to the bake time.
- 6Store leftovers in an airtight container in the fridge for up to 3 days, or freeze for up to 2 months.
- 7For even cooking, let the baked casserole rest 5 minutes before slicing — it sets the layers.
Adapt it for your goals.
Spicy Sausage & Peppers
Substitute hot Italian sausage for the mild variety and increase the red chili flakes to 1/2 teaspoon for a fiery kick that cuts through the richness.
VegetarianVegetarian
Replace the sausage with 400g of crumbled plant-based Italian sausage or sautéed mushrooms. Use vegetable broth if needed and add 1/2 tsp smoked paprika for depth.
Gluten FreeGluten-Free
Use gluten-free penne pasta and ensure the sausage and all other ingredients are certified gluten-free. Cook pasta al dente per package instructions.
Low Carb / KetoLow-Carb / Keto
Replace the penne with cauliflower florets (roasted or boiled until tender) and use full-fat mozzarella. Omit the pasta; bake as a cheesy sausage and pepper casserole.
Why this is on our healthy list.
Rich in Lycopene
Crushed tomatoes are a concentrated source of lycopene, a powerful antioxidant linked to heart health, especially when cooked in olive oil.
Good Source of Protein
Italian sausage and cheese provide high-quality animal protein, essential for muscle maintenance and satiety after a hearty meal.
Vitamin C from Bell Peppers
Both red and yellow bell peppers are excellent sources of vitamin C, which supports immune function and collagen production.
Frequently asked questions
Yes, any short sturdy pasta like ziti, rigatoni, or fusilli works well since they hold the chunky sauce and cheese.







