Preparation
Preheat oven 400. Cut tortillas into 1/2 inch strips. Place on flat baking Stone. Bake 7-8 minutes.
Meanwhile, chop onion. Cook chicken in skillet 3 minutes. Add onions, garlic, chili, and cumin. Cook and stir 2 minutes. Stir in broth, tomatoes and chilies. Bring to a boil. Reduce heat and simmer 10 minutes.
Snip cilantro. Ladle soup over tortilla strips.Top with cheese and cilantro if desired. Garnish with lime slices.