Cooking : Black Bean Tortilla Casserole

Ingredients
2 large onions, chopped
1 1/2 cups chopped green pepper
1 (14.5 ounce) can diced tomatoes, drained
3/4 cup picante sauce
2 garlic cloves, minced
2 teaspoons ground cumin
2 (15 ounce) cans black beans, rinsed and drained
8 (6 inch) corn tortillas
2 cups (8 ounces) shredded reduced-fat Mexican-blend cheese
1 1/2 cups shredded lettuce
1 cup chopped fresh tomatoes
1/2 cup thinly sliced green onions
1/2 cup sliced ripe olives

Directions
In a large saucepan, combine the onions, peppers, tomatoes, picante sauce, garlic and cumin. Bring to a boil. Reduce heat; simmer, uncovered, for 10 minutes. Stir in the beans. Spread a third of the mixture in a 13-in. x 9-in. x 2-in. baking dish coated with nonstick cooking spray. Layer with four tortillas and 2/3 cup cheese. Repeat layers; top with remaining beans.
Cover and bake at 350 degrees F for 30-35 minutes or until heated through. Sprinkle with remaining cheese. Let stand for 5 minutes or until cheese is melted. Serve with toppings.