In skillet over medium-high heat, cook beef until browned, stirring to separate meat. Pour off fat. Add soup, salsa, milk, tortillas and half the cheese. Spoon into 2-qt. shallow baking dish. Cover. Bake at 400 degrees 30 minutes, or until hot. Sprinkle with remaining cheese. Serves 4.
I just made this tonight for my family and they loved it!