Zesty Mexican Casserole

Ingredients:

1 lb lean ground beef

1 small onion, chopped

1 (10 oz) can Ro-Tel tomatoes (with green chilies), undrained

1 (15 oz) can Ranch Style beans, undrained

1 packet taco seasoning

1 (10.5 oz) can cream of chicken soup

1/2 cup water

1 (10-12 oz) bag tortilla chips, crushed (about 4-5 cups)

2 cups shredded cheddar cheese, divided