This is more like a chili than a soup, but it's easy and great on a cold night.
1 lb. ground beef
1 onion - chopped
1 package (or 3 Tbsp) Ranch dressing mix (I buy the bulk from Sam's)
1 package taco seasoning mix (also purchased in bulk from Sam's)
1 cup water
2 (14.5 oz) cans diced tomatoes with green chilies (this make it spicy so omit the chilies if desired)
2 (15 oz) cans pinto beans
1 (15 oz) can black beans
1 (15 oz) can cream style corn
Brown beef with onions in a medium-size soup pot. Drain excess grease. Add remaining ingredients and simmer for 20 minutes before serving. Top with sour cream, cheese or fresh cilantro and thin tortilla chips.