Taco Soup

1 Onion, chopped
1 (16 ounce) can chili beans
1 (15 ounce) can black beans
1 (15 ounce) can whole kernel corn, drained
1 (8 ounce) can tomato sauce
1 (12 ounce) can or bottle beer (or broth)
2 (10 ounce) can diced tomatoes with green chilies, undrained
1 (1.25 ounce) package taco seasoning

1. Combine all ingredients into a ziploc bag. Freeze. 
2. Thaw and cook on low for 6-8 hours. 
3. Serve topped with shredded cheddar cheese, a dollop of sour cream, and crushed tortilla chips if desired. Serves approx. 5-6 people. Can also be made with chicken.