1 (8-ounce package) macaroni, cooked and drained
1 pound Velveeta cheese, cubed
1 (10 ¾ ounce) can cream mushroom soup
1 cup mayonnaise
1/2 cup milk
1/2 cup (1 stick) melted margarine
1 sleeve buttery round crackers, crushed

Mix and pour in deep 9-x13-inch dish. Top with crushed crackers. Bake at 350 degrees about 25 minutes until brown and bubbly.