Creating Spinach and Ricotta Stuffed Shells can be an exciting culinary adventure. Follow these simple steps:

1. Preheat your oven: Set your oven to 375°F (190°C) to ensure it’s ready for baking.

2. Cook the pasta shells: In a large pot, bring salted water to a boil. Cook the pasta shells according to the package instructions until al dente. Drain and set aside.

3. Prepare the filling: In a large mixing bowl, combine the ricotta cheese, chopped spinach, half of the mozzarella cheese, Parmesan cheese, and egg. Add garlic powder, onion powder, salt, and black pepper. Mix until well combined.

4. Stuff the shells: Take each pasta shell and fill it generously with the spinach and ricotta mixture.

5. Layer the baking dish: Spread a small amount of marinara sauce on the bottom of a 9×13 inch baking dish to prevent sticking. Place the stuffed shells in the dish, opening side up.

6. Add more sauce: Pour the remaining marinara sauce over the stuffed shells, ensuring they are well coated.

7. Sprinkle cheese: Top the shells with the remaining mozzarella cheese for a bubbly, cheesy finish.

8. Cover the dish: If desired, cover the baking dish with aluminum foil to prevent over-browning.

9. Bake: Place the dish in the preheated oven and bake for 30-35 minutes. Remove the foil in the last 10 minutes of baking for a golden cheese layer.

10. Cool and serve: Remove from the oven and let cool for about 10-15 minutes before serving. Garnish with fresh basil or parsley if desired.

These simple steps will guide you to create this incredible dish effortlessly!