NANNI'S TACO SOUP

I got this recipe at my local library years ago.  I have no idea who Nanni is/was!

1 lb ground beef
1 can black beans
2 cans pinto beans
2 cans Rotel tomatoes
2 cans diced tomatoes
2 cans corn
1 small yellow onion, diced
1 packet taco seasoning

Brown the ground beef in a skillet and drain well, return beef to skillet and add the onions; saute with beef until onions are transparent.  Add the taco seasoning (whole packet or to suit your taste); stir to mix together well.

Stir in the Rotel and diced tomatoes, drained black beans, pinto beans, and corn.  Simmer until the flavors are blended and the mixture is slightly thickened.

If desired, garnish with sour cream, shredded cheddar cheese, broken tortilla chips, etc.