2 pounds lean ground beef 1 medium onion, chopped 1 (11.5-ounce) can condensed tomato soup 2 (10-ounce) cans mild or hot enchilada sauce 1 cup water 9 (8-inch) flour or corn tortillas 1-1/2 to 2 cups (8 ounces) Cheddar or Monterey Jack cheese, shredded Cooking [...]