This Creamy Italian Sausage Alfredo Bake is one of those pasta bakes that feels like a big, cheesy hug in a dish. It's loaded with juicy sausage, a silky cream sauce, and plenty of melty mozzarella - just pure comfort food that's ridiculously easy to throw together on any night of the week.
I'll start by saying that there just one thing more satisfying for me than a creamy Alfredo-style pasta and that's an Alfredo pasta bake. Throw in some yummy Italian sausage and that's pure perfection in my book.
This creamy Italian sausage Alfredo bake disappears fast from the table every time I make it, but I really can't blame my family. It's super indulgent, incredibly tasty, and just something that makes even the worst day so much better.
Why you'll love this Italian sausage alfredo bake
- It's rich, creamy, cheesy, and packed with flavour; basically everything you want in a comforting pasta bake.
- You only need simple, everyday ingredients, and it all comes together with minimal effort.
- It feeds a crowd, reheats beautifully, and makes the best leftovers (if you're lucky enough to have any!).
What you'll need
Pasta - Rigatoni or penne are perfect because the ridges catch every drop of that silky Alfredo sauce.
Italian sausage - Remove the casings and crumble it so it browns evenly. I typically use mild sausage to keep things family-friendly but you can use spicy if you like.
Onion - White or red onion both work well in this pasta dish.
Garlic - Freshly chopped garlic is always best, but if you don't have it, a teaspoon of garlic powder will do the trick.
Italian herb mix - A simple blend of oregano, basil and thyme for instant flavor.
Chicken stock - I go low‑sodium so I can control the saltiness.
Heavy cream - This is what makes the sauce lusciously creamy. You can use half and half for a lighter version.
Parmesan cheese - I always grate it myself so it melts perfectly in the sauce.
Mozzarella cheese - Part goes inside and the rest on top for that golden cheesy finish.
Pro tip
Let the pasta bake rest for 5-10 minutes after coming out of the oven. This helps the sauce thicken slightly and makes it easier to slice and serve without it falling apart.
How to make Italian sausage Alfredo pasta bake
This is a quick overview with step-by-step photos. See the recipe card below for full ingredients and instructions.
Cook the pasta in salted water until just under al dente, then drain and set it aside while you make the sauce.
In a skillet, cook the onion, garlic and sausage in olive oil until browned, then stir in the herbs, chili flakes, and chicken stock.
Pour in the cream, then add the Parmesan and half the mozzarella, stirring until everything's melted into a creamy sauce.
Toss in the pasta, transfer to a baking dish, top with the remaining mozzarella, and bake until golden and bubbly.
Substitutions and variations
- Add some chopped mushrooms for more flavor and to bulk up the pasta bake.
- Swap the sausage for a vegetarian one if you want the dish to be meat-free.
- Stir in a handful of spinach with the cheese to sneak in some greens.
Helpful tips
- Brown the sausage really well for the best flavor - and those delicious crispy bits.
- Don't overcook your pasta; pull it out a minute or two before al dente since it'll finish in the oven.
- Give the bake a quick stir halfway through if you want extra‑even cheese melting.
What to serve with Alfredo sausage pasta bake
This pasta dish is a complete meal in its own but you can add some extras if you'd like.
Garlic bread or cheesy toast are great for extra comfort or you can keep it lighter with a crisp green salad with a tangy vinaigrette.
Leftovers and storage
- This Alfredo sausage pasta bake makes great leftovers! Allow it to cool completely, then store in an airtight container for up to 3-4 days.
- I like to reheat it gently in the oven (350°F/175°C), but you can also do it in short bursts in the microwave until piping hot.
- I wouldn't freeze this dish because the pasta will turn mushy when thawed, and the creamy sauce may split.
If you've tried this creamy Italian sausage Alfredo bake recipe, please rate it and leave a comment below! I'd love to hear how it turned out.
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Creamy Italian Sausage Alfredo Bake
Ingredients
- 1 pound short pasta
- 1 tablespoon olive oil
- 1 medium onion finely diced
- 2 large garlic cloves finely chopped
- 1 pound Italian sausage casings removed
- 1 teaspoon Italian herbs mix
- ½ teaspoon red chili flakes
- ½ cup chicken stock
- 2 cups heavy cream
- ½ cup Parmesan cheese grated
- 1 ½ cup Mozzarella cheese grated, divided
- Fresh parsley to garnish
Instructions
- Preheat your oven to 375°F (190°C). Bring a large pot of water to a boil, salt it and cook the pasta two minutes less than directed on the package. Drain and set aside.1 pound short pasta
- Meanwhile, heat the olive oil in a large skillet over medium heat. Add the onion and cook for 3-4 minutes until softened.1 tablespoon olive oil1 medium onion
- Add the garlic and cook for about 30 seconds until fragrant, then add the Italian sausage. Break it up with a wooden spoon and cook for 6-7 minutes, or until browned and cooked through.2 large garlic cloves1 pound Italian sausage
- Stir in the Italian herb mix and red chili flakes. Cook for another minute, then pour in the chicken stock. Simmer for 2-3 minutes to reduce slightly.1 teaspoon Italian herbs mix½ teaspoon red chili flakes½ cup chicken stock
- Lower the heat and stir in the heavy cream. Let it simmer for 2-3 minutes, then add the Parmesan cheese. Stir until the cheese is melted and the sauce is smooth and creamy.2 cups heavy cream½ cup Parmesan cheese
- Add the cooked pasta to the skillet together with half a cup of grated mozzarella and toss well to coat. Adjust the salt and pepper to taste at this point.1 ½ cup Mozzarella cheese
- Transfer the mixture to a lightly greased 9×13-inch baking dish and sprinkle the remaining mozzarella evenly on top.
- Bake for 20-25 minutes, or until the top is golden and bubbly. Garnish with freshly chopped parsley and serve warm.Fresh parsley
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