Brown the ground beef in a pan with onions and seasonings.
Place meat in crock pot and add tomatoes, ranch dressing, and beef broth.
Cook on high in crock pot for 1.5 hours.
There are two ways to enjoy Taco Soup: First, line the bottom of the soup bowl with corn chips, then top with soup, shredded cheese, and a dollop of sour cream. The second is to serve the soup and add all three toppings as desired.