Light versions of baked spaghetti casserole can be found online at food sites such as Taste of Home and Food Network. Lighter spaghetti casserole recipes lower the fat in the dish by substituting low-fat cheeses for regular cheese, and they include numerous vegetables.
The Taste of Home website features a low-fat baked spaghetti casserole that has classic Italian flavors. Regular spaghetti pasta is cooked, drained and then tossed with Parmesan cheese in the first step. The spaghetti is combined with a mixture of tomatoes, green peppers and prepared spaghetti sauce. It cuts down on the calories by adding skim ricotta cheese into the spaghetti mixture and topping the mixture with skim Mozzarella cheese. Time is saved by using canned mushrooms instead of fresh mushrooms, and the casserole is placed in the oven and baked until done.
Chef Bobby Deen's version of light spaghetti casserole requires a bit more effort to make, and it uses angel hair pasta made from whole wheat. His version also uses sweet Italian chicken sausage, which must be removed from the casings before cooking. Vegetables such as crimini mushrooms, green bell peppers and onions must be finely chopped and cooked with the sausage. Chef Deen opts to use a cup of cheese, consisting of a 1/2 cup of cheddar cheese, and a 1/2 cup of part-skim Mozzarella cheese.