In Crock-pot, combine the shredded chicken, whole tomatoes, enchilada sauce, onion, green chilis and garlic. Add the eater, chicken broth, cumin, chili powder, salt, pepper and bay leaf. Stir in the corn and cilantro. Cover and cook on low 6-8 hours or on high 3-4 hours. Preheat oven to 400F. Lightly brush both sides of tortillas with vegetable oil. Cut the tortillas into strips that are 2.5-in long and 0.5-in wide. Spread the tortilla strips onto a baking sheet. Bake, turning occasionally, until crisp, 5-10 minutes. Sprinkle tortilla strips and grated Parmesan cheese over soup.