1 pound hamburger
1/2 teaspoon salt
1 large onion
1 - 8 oz. package uncooked elbow macaroni
16 ounces spaghetti or pizza sauce
4 ounces pepperoni slices
1 - 9 oz. package grated mozzarella

Brown hamburger with onion. Drain off fat. Season with salt, if desired. Meanwhile, bring 3 to 4 quarts of water to boil in large pan with 1 Tbsp. salt. Add macaroni and boil, uncovered, 10-12 min. Drain. Mix pizza sauce with macaroni and hamburger.  Place in two 1 1/2 qt. casseroles, alternating layers with
pepperoni and cheese. End up with cheese. Bake, uncovered, at 350 degrees for 30-40 min.