Sara's Taco Soup

1 lb. ground beef
1 onion, chopped
2 (14 oz.) cans chicken broth
3 (14.5 oz.) cans diced tomatoes with green chiles (I use Rotel)-can use regular petite diced if you don't want it too spicy
1 (15.5 oz.) can red kidney beans, rinsed and drained
1 (15.5 oz.) can black beans, rinsed and drained
1 (7 oz.) can whole kernel corn, drained
1 pkg. taco seasoning
1 pkg. Ranch dressing seasoning mix

Cook beef and onion in a skillet. Drain. Mix with broth, tomatoes, kidney beans, black beans, corn, taco seasoning mix, and Ranch dressing seasoning mix. Bring to a boil. Reduce heat, cover, and simmer.

Can be made in a crock pot too.