Black Bean Lasagna

Preheat oven to 350 degrees. In an 8-by-8-inch baking dish, cover the bottom with 1/2 cup tomato sauce. Mix remaining sauce and black beans together. Place one tortilla in the dish (you might need to fold the edges around the dish). Place 1/4 of the bean mixture on top of the tortilla. Sprinkle with cheese. Repeat layers, ending with a tortilla and the remaining cheese on top. Cover and bake for 20 to 25 minutes. Sprinkle diced green onions on top and serve.

Top with chopped scallions, tomatoes, guacamole or sour cream.