Brown and crumble ground beef in a large skillet until thoroughly cooked. Drain grease. Add beef to a large greased crock pot. (I use a 7 quart size crock pot.)
Add beans, tomatoes, corn, enchilada sauce, chicken broth, taco seasoning and tomato paste to crock pot. Stir to combine. Cover with lid and cook on low heat 3 to 6 hours.
Mix together the cornstarch and water to create a slurry. Add to the soup in crock pot and stir. Cover with lid again and let heat for another 30 minutes. (Soup should be thickened at this point.)
Serve soup warm with shredded cheese, tortilla strips, sour cream, etc. Enjoy!