Cook shells as directed; drain, cool. 3. In a large bowl, mix chopped onion, chicken bullion, garlic powder, thyme, ricotta cheese, cottage cheese, eggs, and cooked spinach. 4. Using your hands and a large spoon, stuff shells with the mixture, and lay in rows in a 13" x 9" baking pan. 5. Spread spaghetti sauce over the shells in the pan. Sprinkle shredded mozzarella on top. 6. Bake at 350 degrees for 25 35 minutes, until warm in the center, and mozzarella cheese has melted. ----