Here's the recipe.
1 lb. hamburger
2 3/4 C. water
1/3 C. ketchup
1 tsp. onion powder
2 cups (8oz.) uncooked elbow macaroni (i used rigatoni)
1/2 lb. (8oz.) Velveeta Cheese, cubed
Brown meat in skillet and drain. Add water, ketchup and onion powder; mix well. Bring to a boil. Stir in pasta. Reduce heat to medium-low; cover. Simmer 8-10 minutes or until pasta is tender. Stir in Velveeta; cook until melted.