slow cooker taco soup

This was requested by my oldest; my lover of food.  This soup cooked for 8 hours so the beef was very tender- my kids went hog wild for it!

slow cooker taco soup (adapted from allrecipes.com)
2 pounds ground beef
1 onion, chopped
1 can kidney beans with liquid
1 can tomato sauce
2 cups water
1 (28 ounce) can tomato puree
1 (4 ounce) can diced green chiles
1 (1.25 ounce) package taco seasoning mix
1 cup of your favorite salsa
shredded cheese for serving
tortilla chips for serving
sour cream for serving

In a skillet ground the beef.  In a slow cooker, combine cooked ground beef, onion, kidney beans, tomato sauce, water, tomato puree, green chiles, taco seasoning and salsa.  Cook on low for 8 hours.  Serve with the works- cheese, tortilla chips and sour cream.