Heat oil in skillet over medium high heat.
Cook onions until translucent.
Add garlic, taco seasoning and ground beef, cook until brown.
Stir in green chilies.
Preheat oven to 400 degrees.
Lightly grease pie plate and cover bottom with 4 tortillas.
Layer in this order: 1/2 beef mixture, 1/2 cheese, 4 tortillas, beans, 4 tortillas, chipolte peppers, 4 tortillas, remaining beef, remaining cheese.
Bake 30-40 minutes uncovered, or until cheese is melted.
Serve with toppings of choice (salsa, sour cream, and guacamole).
Leave out the chipolte peppers if you do not like spice, feel free to add black beans with refried beans for extra protein, and substitute leftover chicken or turkey for the beef with ease. Double recipe to freeze ahead for a lazy or crazy day.
