Step 1

Preheat the oven to 375 degrees F.

Step 2

Coat the bottom of a 9x12" baking dish with a layer of enchilada sauce. Top with a layer of tortillas, cutting if needed to cover the dish. Top tortillas with all of the beans. Sprinkle with 1/2 cup of the cheese and all of the peppers and onions.

Step 3

Sprinkle a little more cheese over the top and cover with a second layer of tortillas, cutting and fitting them like puzzle pieces. Cover the tortillas with enchilada sauce. Most of the sauce should be used. Sprinkle 1 cup of cheese over the top and arrange olives on the cheese, if using.

Step 4

Bake for 30 minutes or until bubbly.