Step 1: Cook the Rotini - Begin by bringing a large pot of salted water to a boil. Add the rotini noodles and cook until al dente, according to package instructions. Drain and set aside.
Step 2: Preheat Your Oven - While the pasta is cooking, preheat your oven to 350°F (175°C).
Step 3: Mix the Cheese Filling - In a mixing bowl, combine the cottage cheese, whisked egg, and 1 cup of shredded mozzarella cheese. Stir until well mixed.
Step 4: Combine with Sauce - In a separate large bowl, mix the cooked rotini noodles with spaghetti sauce or marinara.
Step 5: Layer the Ingredients - In your baking dish, spread half of the sauced rotini in an even layer. Dollop the cheese mixture over the pasta and spread evenly. Top with the remaining sauced rotini.
Step 6: Add the Final Touch - Sprinkle the remaining shredded mozzarella cheese over the top layer of rotini.
Step 7: Bake - Cover the baking dish with aluminum foil and place it in the preheated oven. Bake for 25 minutes, then remove the foil and bake for an additional 10-15 minutes.
