Covered with the creamy Parm sauce, these shells are a great way to get your kids (and green-averse adults) to eat their vegetables. The sky is the limit when it comes to filling the shells. If you’re craving meat, add some shredded chicken or even lump crabmeat. Broccoli, Swiss chard, and asparagus can all stand in for spinach, and if you’re not big on mushrooms, lose them.
Ingredients
12 ounces jumbo shells
2 tablespoons olive oil
3 ounces (about 1 cup) finely chopped cremini mushrooms
2 garlic cloves, finely minced or pressed through a garlic press
6 ounces frozen or fresh spinach, thawed
1 pound whole-milk or part-skim ricotta cheese
4 cups (16 ounces) grated whole-milk or part-skim mozzarella cheese
2 large eggs, lightly beaten
1⁄2 cup finely chopped fresh basil leaves
1 tablespoon finely chopped fresh oregano (from about 1 large sprig)
11⁄2 teaspoons salt
3 cups homemade Parmesan sauce or store-bought Alfredo sauce
1⁄3 cup grated Parmesan cheese
Boil the pasta. Preheat the oven to 350°F. Bring a large pot of salty water to a boil over high heat. Add the shells and boil them until just shy of al dente, about 10 minutes. Drain and rinse under cool water and then set aside. Make the fIllIng. Heat the oil in a large skillet over medium-high heat. Add the mushrooms and garlic and cook, stirring often, until the mushrooms get juicy, about 5 minutes. Add the spinach and cook, stirring often, until wilted and most of the liquid is gone, about 5 minutes longer. Transfer the mixture in an even layer to a baking sheet to cool. Meanwhile, stir together the ricotta, 3 cups of the mozzarella, the eggs, basil, oregano, and salt in a large bowl. Stir in the cooled vegetables and set aside.
Stuff the shells. Pour a third of the sauce into the bottom of a 13″ x 9″ baking dish. Use a small spoon to fill each shell with 1 heaping tablespoon of the cheese/spinach mixture, and then place it in the baking dish. Once all of the shells are filled, cover them with the remaining sauce, the remaining 1 cup of mozzarella, and the Parmesan. (At this point, the dish can be frozen for up to 3 months; defrost it overnight in the fridge before baking.)
Bake the shells. Cover the baking dish with foil and bake until bubbly, about 40 minutes. Uncover the dish and bake until the cheese is bubbling and golden brown, another 10 to 15 minutes. Remove it from the oven and let the stuffed shells rest for 5 minutes before serving.
