A good friend of ours makes cheese filled pasta shells on occasion and they are amazing and delicious. These feature spinach, which I know my friend would not use, but sound very good.
Cheese Filled Pasta Shells – 350º oven 25-30 min – serves 4-6
Cook 8 oz large pasta shells as directed on box. Drain one 10 oz pkg frozen chopped spinach. Combine with 2 cups (1 pt) Ricotta cheese, 1/2 c Parmesan cheese, & 1/8 tsp pepper. Fill shells with cheese mixture. Place in one layer in 13x9x2 baking dish. Combine 1 1/3 c (2 6oz cans) Contadina Italian tomato paste and 1 1/3 cups water. Pour over & around the stuffed shells. Sprinkle 1/2 c grated mozzarella cheese on top. Bake 25-30 min in 350º oven.