Spread the entire cottage cheese mixture over the pasta.
Top with the remaining pasta, then the remaining sauce.
Sprinkle 1 cup of mozzarella and 1 cup of Parmesan over the top. 
Bake covered: Cover the dish with foil and bake for 30 minutes. 
Finish baking uncovered: Remove the foil and bake for an additional 10 minutes, or until the cheese is melted and bubbly. 
Serve: Remove from the oven and let it sit for a few minutes before serving. Enjoy your cheesy, comforting baked mostaccioli! 
