Double-Stuffed Shells are a delicious and satisfying Italian dish that combines jumbo pasta shells, ricotta cheese, spinach, and marinara sauce. The shells are stuffed with a mixture of ricotta cheese, spinach, garlic, and Parmesan cheese, then baked in the oven until golden and bubbly. Serve these cheesy and flavorful shells as a main course or as a side dish with a green salad and garlic bread for a complete meal.