preheat oven to 400 degrees and lightly oil a med sized casserole dish
Instructions:
In a large bowl combine beans, tomatoes, salsa, corn, cumin and salt.
place a layer of 4 to 6 tortillas to cover bottom of casserole dish, overlapping edges. Cover with half of the beans and half of the cheese, repeat the layers until all ingredients are used. Bake for about 20 minutes. remove casserole , cover and let cool 15 minutes before serving.