Stuffed with creamy ricotta and smothered in rich sauce and melty cheese, these Italian Stuffed Shells use simple ingredients and are freezer-friendly.
Preheat the oven to 375℉ (190℃). Lightly grease a 2-quart baking dish, then spread about ½ cup of spaghetti sauce on the bottom of the dish and set aside.
Bring a large pot of water to a rapid boil to cook the shells. Once the water is boiling, salt it heavily, then stir in the pasta. Cook for 9 minutes, or 2 minutes less than the package directions state. Drain the pasta, but do NOT rinse, and allow the shells to cool slightly.
While the pasta cooks, prepare the stuffing by mixing the ricotta cheese, egg, minced garlic, Parmesan, parsley, crushed red pepper flakes, oregano, salt, and pepper in a medium mixing bowl. Set that aside to stuff the shells.
Once the shells are cool enough to handle, stuff each shell with the ricotta mixture, about 1½ tablespoons per shell. Remember not to overstuff, so that the shells can close somewhat around the ricotta filling. Place each stuffed shell into the prepared baking dish.
Top the shells with the remaining spaghetti sauce, then cover with the shredded mozzarella cheese.
Bake for 30 minutes, or until cheese is melted and browned.
Let sit for 5-10 minutes prior to serving.
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Notes
Add Spinach: Stir in ½ to 1 cup of well-drained, chopped spinach to the ricotta mixture. Adding Meat: Mix in ½ pound cooked ground beef, turkey, or Italian sausage to the filling OR sauce.Leftovers: Store in an airtight container in the refrigerator for up to 4 days and reheat as desired. To Prep and Freeze Ahead: Assemble the stuffed shells in a freezer-safe or disposable baking dish, cover tightly with two layers of foil, and freeze for up to 3 months. When ready to bake, remove one layer of foil and bake at 350°F for 1 hour. Uncover and bake 10-15 more minutes, until hot and bubbly.