Top-ranked recipe named "Velveeta Shells & Cheese Cheeseburger Mac"
Brown beef in a large skillet and drain.
Stir in water, milk, ketchup, and mustard. Bring to boil.
Stir in Shell Macaroni. Reduce heat to medium/low and cover. Simmer 10-12 minutes or until macaroni is tender.
Add Cheese Sauce and stir until melted. Let stand for 2 minutes and serve.