Italian Sausage Baked Penne

This Italian Sausage Baked Penne is the kind of dinner that makes the whole house smell. amazing

It’s cheesy, hearty, and packed with rich tomato sauce and savory sausage.

I love making this on busy nights because it feels special without being hard to make.

The pasta bakes up bubbly and golden, and every bite is full of flavor.

It’s cozy comfort food that always disappears fast at the table.

Servings: 8
Prep Time: 20 minutes
Cook Time: 35 minutes
Total Time: 55 minutes

Why I Love This Recipe

The first time I made this baked penne, I was trying to use up leftover sausage and pasta. I tossed everything together with extra cheese and baked it until bubbly. The smell alone brought everyone into the kitchen before dinner was even ready.

Now it’s one of my favorite comfort meals because it’s simple, filling, and easy to make ahead. It also reheats beautifully the next day.

Here’s why I keep coming back to this recipe:

The sausage gives the sauce rich flavor fast
The baked cheese gets perfectly gooey and golden
Penne holds onto the sauce in every bite
It makes enough for leftovers
You can easily switch up the cheese or pasta
It tastes like restaurant baked pasta at home

Why This Recipe Works (Quick Science)

Baking the pasta after mixing everything together helps the flavors blend deeply into the noodles. The starch from the pasta thickens the sauce while baking, making it creamy and rich.

Mozzarella melts smoothly because of its moisture and protein balance, while Parmesan adds salty flavor and helps create those crispy golden edges on top.

Cooking the sausage first also builds flavor because browning meat creates a rich savory taste called the Maillard reaction.

What You’ll Need

1 pound penne pasta
1 pound Italian sausage
1 tablespoon olive oil
1 small onion, diced
3 cloves garlic, minced
1 jar (24 ounces) marinara sauce
1 can (14 ounces) diced tomatoes, drained
1 teaspoon Italian seasoning
1/2 teaspoon salt
1/2 teaspoon black pepper
2 cups shredded mozzarella cheese
1/2 cup grated Parmesan cheese
2 tablespoons chopped parsley

Tools You’ll Need

Large pot
Colander
Large skillet
Wooden spoon
9×13 baking dish
Measuring cups and spoons
Cheese grater if shredding fresh cheese
Aluminum foil

Substitutions and Variations

Use spicy Italian sausage for more heat
Swap penne for rigatoni or ziti
Add spinach or mushrooms to the sauce
Use provolone cheese for extra richness
Replace sausage with ground beef or turkey
Add crushed red pepper flakes for spice

Make Ahead Tips

Assemble the full dish up to 24 hours ahead
Cover tightly and refrigerate before baking
Add 10 extra minutes to bake time if cold from the fridge
Freeze unbaked casserole for up to 2 months

Instructions

Step 1: Boil the Pasta

Bring a large pot of salted water to a boil. Add 1 pound penne pasta and cook until just al dente according to the package directions. Drain the pasta and set it aside.

Step 2: Cook the Sausage and Onion

Heat 1 tablespoon olive oil in a large skillet over medium heat. Add 1 pound Italian sausage and 1 small diced onion. Cook for 7 to 8 minutes, breaking the sausage into crumbles until browned and fully cooked. Drain extra grease if needed.

Step 3: Add Garlic and Sauce

Add 3 cloves minced garlic and cook for 30 seconds. Stir in 24 ounces marinara sauce, 14 ounces drained diced tomatoes, 1 teaspoon Italian seasoning, 1/2 teaspoon salt, and 1/2 teaspoon black pepper. Simmer for 5 minutes.

Step 4: Mix Pasta and Cheese

Add the cooked penne pasta to the sauce. Stir in 1 cup shredded mozzarella cheese and 1/4 cup grated Parmesan cheese until everything is coated evenly.

Step 5: Fill the Baking Dish

Pour the pasta mixture into a white ceramic 9×13 baking dish. Sprinkle the remaining 1 cup shredded mozzarella cheese and 1/4 cup grated Parmesan cheese evenly over the top.

Step 6: Bake Until Bubbly

Bake at 375 degrees Fahrenheit for 20 minutes uncovered until the cheese is melted and bubbling. Broil for 2 minutes if you want extra golden cheese on top.

Step 7: Garnish and Serve

Sprinkle 2 tablespoons chopped parsley over the baked penne before serving.

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Pro Tips

Cook the pasta just until al dente so it does not get too soft while baking
Shred your own mozzarella for smoother melting
Let the baked pasta rest for 5 minutes before serving so it holds together better
Use a deep baking dish to keep the sauce from bubbling over
Add extra Parmesan on top before broiling for crisp cheesy edges

Common Mistakes

Overcooking the pasta before baking can make it mushy
Using too little sauce can dry out the casserole
Skipping the resting time can make the pasta fall apart when serving
Baking too long can make the cheese tough instead of gooey
Forgetting to drain excess grease from the sausage can make the dish oily

What to Serve With

Garlic bread
Caesar salad
Roasted broccoli
Green beans
Italian chopped salad
Lemon sparkling water

Macros Information

Approximate per serving:

Calories: 540
Protein: 29g
Carbohydrates: 42g
Fat: 28g
Fiber: 4g
Sugar: 7g

Leftovers and Storage

Store leftovers in an airtight container in the fridge for up to 4 days
Reheat in the microwave or oven until hot
Add a splash of water or sauce before reheating to keep the pasta moist
Freeze portions for up to 2 months

FAQ

Q: Can I use another pasta shape?
A: Yes. Rigatoni, ziti, or rotini all work great.

Q: Can I make this ahead of time?
A: Yes. Assemble it ahead and refrigerate before baking.

Q: Can I freeze baked penne?
A: Absolutely. Let it cool fully before freezing.

Q: How do I make it spicier?
A: Use hot Italian sausage or add crushed red pepper flakes.

Q: Do I need to cover it while baking?
A: No. Baking uncovered helps the cheese brown nicely.

Final Thoughts

This Italian Sausage Baked Penne is one of those meals that always feels warm and comforting. It’s simple enough for a weeknight but hearty enough for guests or family dinners. The cheesy top, rich sausage sauce, and tender pasta make every bite delicious.

Give it a try and make it your own with your favorite cheese or extra veggies. Then come back and leave a comment sharing how it turned out or any questions you have.