In this recipe, I'll suggest swaps for protein ingredients and techniques for fitting the casserole in your favorite size baking dish.
Tortilla Casserole
This recipe makes 1 9X 13 inch pan or 2 smaller pans (the one in the picture 5 X 9. I also made a second one in a loaf pan and froze for later) When we prepared this in the cafeteria I managed, we arranged 12 servings in a half size steam table pan and cut 3 X 4 to serve.
(8 servings)
1/4 cup onion, diced
2 teaspoon cumin
1 and 1/3 teaspoon chili powder
Dash oregano
Add tomatoes, corn and cooked protein (chicken or pork and beans) to pot.
1 1/2 cup canned diced tomatoes, no added salt
1 1/2 cup cooked and drained beans
6 corn tortillas
Top with cheese.
6 tablespoon cheese each layer
Repeat.
Cover with foil. Bake at 325 F 30-40 minutes. (Till internal temperature reaches 165 F) Remove foil the last 15 minutes.
The second casserole I assembled was placed in a 8 X 4 X 2.5 inch pan (the layers of protein and vegetables were slightly smaller) and froze. To thaw, I placed it in the refrigerator the night before, then baked at 325 F. The casserole was still frozen slightly and took 90 minutes to bake. The key was using the thermometer to check the internal temperature.