1. Add butter to a skillet. Throw in onions and garlic. Sauté.
2. In a large bowl add chicken, sour cream, salsa verse, green chiles, cilantro, cumin, and sautéed onion mixture. Combine.
3. Tear tortillas in bite sized pieces.
4. Layer 1/4 chicken mixture, 1 cup cheese, 1/4 tortillas. Repeat until you have 4 layers. Ending on cheese.
5. Bake for 20-25 minutes on 400 degrees. Let sit 5 minutes before cutting into.