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Ingredients
Kosher salt (such as Diamond Crystal) and freshly ground black pepper
1 pound rigatoni
2 teaspoons olive oil
1 pound hot or sweet Italian chicken sausage (or Italian pork sausage), casings removed
4 tablespoons unsalted butter
3 tablespoons all-purpose flour
2 cups milk
3 garlic cloves, grated
3 tablespoons grated lemon zest, plus 6 tablespoons lemon juice (from about 3 lemons)
1 cup ricotta
½ cup grated Parmesan
2 cups baby spinach
1 cup/4 ounces shredded mozzarella
8 ounces fresh mozzarella, sliced
For garnish
Basil leaves
Crushed red pepper
Lemon zest
Preparation
- Step 1
Heat oven to 350 degrees.
- Step 2
Bring a large pot of generously salted water to a boil. Boil the pasta until al dente according to the package’s instructions. Reserve ¾ cup of pasta water and then drain the pasta.
- Step 3
In a large (preferably ovenproof) skillet over medium-high heat, heat the olive oil. Once hot, add the sausage and cook, breaking it up with a wooden spoon until it’s cooked through and lightly browned. Remove the sausage from the pan.
- Step 4
In the same pan (no need to wash it), lower the heat to medium-low and add the butter. Once the butter has melted, add the flour and stir for 1 minute, allowing the flour to become fragrant and nutty. Slowly stir in the milk, gently picking up any bits that have stuck to the pan.
- Step 5
Next, mix in the grated garlic, lemon zest and reserved ¾ cup pasta water. Stir until a thick sauce comes together that coats the back of a spoon; 2 to 4 minutes. Remove the sauce from the heat and immediately stir in the ricotta, Parmesan, lemon juice, 1½ teaspoons salt and ½ teaspoon black pepper. Taste the sauce for seasoning, adding more salt as needed.
- Step 6
Add the drained pasta to the sauce along with the chicken sausage, spinach and shredded mozzarella. Give it a good mix until the pasta is fully coated in the sauce. If your pan isn’t ovenproof, transfer the pasta mixture to a 9-by-13-inch baking dish (or other 3-quart baking dish).
- Step 7
Cover the top with the slices of fresh mozzarella. Cover with foil and bake for 20 minutes, then remove foil and broil for 2 to 3 minutes, until the mozzarella topping is melted with golden brown flecks. Garnish with basil leaves, crushed red pepper and more lemon zest to taste before serving.
Private Notes
Comments
Delicious combination, but the sauce separated and curdled when baked. Make sure sauce is thick enough to coat the spoon. 2-4 minutes at medium low was not enough.
I used freshly made mild Italian sausage as the only mod on the recipe. Used fresh Italian mozzarella - sliced thinly on top - and absolutely did not find it too cheesy (as in other comments). Don’t skip the basil or the red pepper flake at serving. They lift it right to where it needs to be. 10/10 and that’s from a former chef who can barely help herself from adjusting recipes as I go. Wouldn’t change a thing here. PS. Skip the foil thing if you have a casserole dish (this is where a Le Creuset can change your life) Lid on for the bake, off for the broil. No foil needed. Easy store. Breezy clean up.
This was alright. Good for a weekend lunch or a light dinner. But we usually prefer a little more flavor in our homecooked meals. The directions say that prep time is 15 minutes and cook time is 45 minutes. I would challenge anyone to prep this dish in 15 minutes. I consider myself fairly comfortable and experienced in the kitchen, and the recipe took me 45 minutes to prep, moving at a fairly brisk pace.
Too much cheese Too much lemon I thought it was an off-putting combination. And the amount is like for a family of 8. Wanted to like it. Didn’t.
This was fine, but I would not make again. It was both a little bland and a little overly lemony at the same time. The lemon flavor really concentrates overnight too, making the leftovers hard for some people in the house to eat.
This dish was amazing! I probably used more lemon zest than the recipe called for but I love lemon! The red pepper flakes were just the right touch for a punch of flavor. I will make this again and again.

