MAKE IT
Step 1
Preheat oven to 350° F. Lightly grease 9-inch square baking dish.
Step 2
Combine spinach soufflé, onion, and ricotta cheese. Fill shells with mixture.
Step 3
Place shells in prepared baking dish. Cover with sauce.
Step 4
Bake for 25 to 30 minutes. Sprinkle mozzarella cheese over shells. Bake for an additional 5 minutes or until hot.