Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
1/2       pound         ground beef
1         package       au gratin potatoes
2 1/4     cups          boiling water
2/3       cup           milk
1         cup           shredded taco-seasoned cheese
1         cup           coarsely broken tortilla chips

Preparation:

Heat oven to 400 degrees. Cook beef in 10-inch skillet over medium heat 8 to 10 minutes, stirring occasionally, until brown; drain. Mix uncooked potatoes, sauce mix, boiling water and milk in ungreased 2-quart casserole. Stir in beef and 1/2 cup of cheese. Bake uncovered about 30 minutes or unti top is light golden brown. Sprinkle chips over casserole; sprinkle remaining cheese over chips. Bake 3 to 5 minutes longer or until cheese is melted.