Spray non stick spray into slow cooker. On the stovetop brown ground beef with onions until meat is no longer pink, drain grease and put into Crockpot.
2
Add all other ingredients EXCEPT cheese. Stir together, close lid and cook 3 hours on high or 6 hours on low heat.
3
Stir in 1 cup of your cheese, it will melt quickly. Serve in bowls with remaining cheese sprinkled on the top of each bowl.
4
Garnish with slices of avocado, sour cream, fresh diced tomatoes, chopped cilantro, etc.