I promised you a fun and easy recipe for leftover spaghetti sauce . Of course, you are free to use a jar of sauce as well (a little doctoring goes a long ways here- fry up some sausage or burger, garlic, onions and peppers…) I usually double the recipe and bake it in a 9×13 pyrex pan.
Recipe
6 ounces of spaghetti
2 egg whites
1/3 cup grated parmesan cheese
1-2 cups cottage cheese
2-3 cups spaghetti sauce
1/2 cup mozzarella or cheddar cheese
Add cooked pasted, egg whites and parmesan cheese in a bowl and mix well
Form to make a crust in a pie pan. 
Spread with cottage cheese as middle layer
Top with spaghetti sauce
Sprinkle with shredded cheese
Bake at 350 for 20 minutes, covering edges with foil if needed