Step 1

Preheat oven to 350 degrees F.

Step 2

Mix together the ricotta and spinach.

Step 3

Place 2 cups of pasta sauce in the bottom of a baking dish.

Step 4

Fill each tube with the spinach ricotta mix using a gallon ziplock bag with corner cut or piping bag.

Step 5

Place filled shells in the baking dish and top with the remaining sauce.

Step 6

Cover and bake for 40 minutes. Uncover and bake 5 – 10 minutes more. Let cool a few minutes before serving.