1 lb. ground beef
1/4 c. chopped onion
Sm. jar prepared spaghetti sauce
1 1/2 c. broken spaghetti (6 or 7 oz.)
2 tbsp. butter
1 c. or more grated Cheddar cheese
1 tbsp. flour
2 tbsp. Parmesan cheese
1/4 tsp. salt
3/4 c. evaporated milk
1/3 c. water

Brown ground beef and onion. Drain. Add spaghetti sauce. Simmer 1 minute. Cook spaghetti noodles according to directions on package. Rinse and drain. Mix spaghetti and sauce.

Melt butter in saucepan. Stir in flour and salt. Add evaporated milk and water. Cook over medium heat until slightly thickened, stirring constantly. Add Cheddar and Parmesan cheese, stir until melted. Spread 1/2 spaghetti in baking dish, then all of sauce, then remainder of spaghetti. Spread 1/2 cup shredded cheese on top. Bake at 350 degrees for 15 to 20 minutes.