Pizza Burgers
["2 lb. hamburger", "1 small onion, chopped", "1/2 c. celery, chopped", "1 Tbsp. sugar", "salt and pepper to taste", "8 oz. Velveeta cheese, cubed", "1 (15 1/2 oz.) can spaghetti sauce with mushrooms", "1 small can tomato paste"]
["Brown the hamburger, onion, celery, sugar, salt and pepper. Drain grease and cool, then add cheese, spaghetti sauce and tomato paste.", "Will keep covered in refrigerator several days."]
["hamburger", "onion", "celery", "sugar", "salt", "Velveeta cheese", "spaghetti sauce", "tomato paste"]