These Stuffed Shells are the ultimate comfort food dinner! Filled with a creamy 3-cheese filling and baked with marinara sauce and cheese. It's easy and perfect for feeding a crowd!
Preheat your oven to 350°F and set aside a 9x13 casserole dish.
Cook the jumbo shells according to the package instructions until al dente. Rinse and drain, then spread them out on a baking sheet so they don't stick.
Heat the oil in a large skillet over medium heat. Add the onion and garlic, and saute until softened, about 4 minutes. Stir in the marinara and dried oregano. Bring to a simmer, then pour into the casserole dish.
In a medium bowl, combine the ricotta cheese, 1 ½ cups of mozzarella, parmesan, parsley, and egg.
Fill each shell with about 2 tablespoons of ricotta filling and place in the casserole dish.
Sprinkle the remaining cheese on top.
Cover with foil and bake for 30 minutes. Remove the foil and bake for another 15 minutes until the cheese is lightly golden. Garnish with extra parsley. Enjoy!
Nutrition information is calculated using an ingredient database and should be considered an estimate.