Combine Ingredients: In a mixing bowl, combine the ricotta cheese, 1/2 cup of the mozzarella cheese, 1/2 cup of the Parmesan cheese, beaten egg, chopped parsley, dried basil, garlic powder, salt, and pepper. Mix until well combined.
Step 3: Assemble the Roll-Ups
Prepare Baking Dish: Spread a thin layer of marinara sauce on the bottom of a 9×13-inch baking dish.
Lay Out Noodles: Lay the cooked lasagna noodles on a clean surface.
Spread Cheese Mixture: Spread about 2 tablespoons of the cheese mixture evenly over each noodle.
Add Sausage: Top the cheese mixture with about 2 tablespoons of the cooked sausage.
