This is a new family favorite. It is rare at my house for my kids to request or eat leftovers, but they love love love this.
Spray 9 x 13 pan with nonstick spray
Layer two times: (use half of each item for the first layer and half for the second)
Browned and seasoned (add cumin) beef
torn corn tortillas
1 can rinsed black beans
1 can stewed tomatoes diced (can also use regular diced tomatoes)
1 can olives sliced
1 can Enchilada sauce
Sour cream (a few dollops spread around)
Top with crushed tortilla chips under the last layer of cheese
Bake covered at 350 for 20 minutes.