crock pot black bean taco soup

Ingredients

• 1 pound ground beef, browned and drained
• 1 can crushed tomatoes (28 oz can)
• 1 can corn, undrained
• 1 can black beans, undrained
• 1 can red kidney beans, undrained
• 1 package dry hidden valley ranch dressing mix
• 1 - small onion, chopped
• 1 package tortilla or corn chips
• - shredded cheddar cheese
• - sour cream (optional)
• 1/2 package taco seasoning mix