Pumpkin-Stuffed Shells in Parmesan Cheese Sauce

1 . Stage

Preheat the oven to 375 degrees F (190 degrees C). Line a baking sheet with parchment paper, waxed paper, or aluminum foil. Grease a 9x13-inch baking dish.

2 . Stage

Bring a large pot of salted water to a boil. Add shells and cook, stirring occasionally, until tender yet firm to the bite, about 9 minutes. Drain and set shells aside on the prepared baking sheet.

3 . Stage

Whip ricotta cheese, pumpkin, cream cheese, shredded Parmesan cheese, sugar, egg, salt, and pepper together in a large bowl using a hand or stand mixer until creamy. Stuff each shell with filling and replace on the baking sheet.

4 . Stage

Melt butter in a large skillet over medium heat. Add garlic and cook for 2 minutes. Whisk in flour until golden and thick to make a roux. Add milk slowly, whisking constantly, followed by half-and-half and grated Parmesan cheese. Whisk until sauce thickens, 3 to 4 minutes. Season cheese sauce with salt and pepper.

5 . Stage

Spread just enough cheese sauce into the bottom of the prepared baking dish to cover. Add stuffed shells and pour remaining sauce over.

6 . Stage

Bake in the preheated oven until browned, 15 to 20 minutes.