Nacho Potato Soup

1 (5 oz) pkg au gratin potatoes

1 can whole kernel corn, drained

1 can rotel

2 cups water

2 cups milk

2 cups Velveeta cheese, cubed

In a large pot, cook au gratin potatoes with the milk and water.  Add corn, rotel and velveeta.  More water or milk may be added if desired.