12 ounces Italian sausage, removed from its casing (see notes)
1 yellow onion, diced
3 garlic cloves, minced
¼ teaspoon dried chili flakes
sea salt and freshly ground black pepper, to taste
2 cups diced butternut squash
1 28 oz. can whole peeled tomatoes, crushed by hand
½ cup dry red wine
4 fresh sage leaves
4 sprigs fresh thyme
1 bay leaf
4 tablespoons unsalted butter, sliced into ¼"-thick pieces
12 ounces mezze paccheri or other short pasta
grated Parmesan cheese (for topping)
Instructions
Preheat oven to 425 degrees.
In a large pot, heat olive oil over medium heat. Add sausage and cook, breaking it into bite-size pieces with a spoon, for 5 minutes.
Add onion, garlic and chili flakes and cook, stirring occasionally, until sausage is browned and onion is softened, about 5 minutes. Season with salt and pepper to taste.
Add butternut squash and cook, stirring occasionally, until it starts to brown, about 8 minutes.
Remove from heat and add tomatoes with juice, red wine, sage, thyme and bay leaf; stir to combine. Arrange the butter slices on top. Cover and bake for 45 minutes.
Bring a large pot of salted water to a boil. Cook pasta until al dente according to package directions. Using a slotted spoon, transfer cooked pasta to pot with ragù and stir to combine. If necessary, add some of the reserved cooking liquid to loosen the sauce.