An easy vegetarian version of tortilla soup. I'm writing it here in its basic, mild form, but you can turn up the heat by adding tabasco, using a hot enchilada sauce, or throwing in some diced jalapeno or chipotle.
Combine all ingredients except tortillas in crockpot, cook on low 8 hours.
Preheat oven to 400°F Lightly spray both sides of tortillas with nonstick cooking spray. Cut into thin strips (about 2.5" x 0.5") and spread onto baking sheet. Bake, turning occasionally until crisp, 5-10 minutes.
Sprinkle tortilla strips over hot soup and serve immediately.