Seven Layer Tortilla Pie

I started making this recipe years ago and haven't made it in awhile.  It's really good.  The original recipe is from AllRecipes.com, and it makes good use of leftover tortillas and salsa, of which I have plenty.

Ingredients
2 (15 oz) cans pinto beans, drained and rinsed
1 cup salsa, divided
2 cloves garlic, minced
2 tbs fresh cilantro, chopped
1 (15 oz) can black beans, drained and rinsed
1/2 cup chopped tomatoes
7 (8 inch) flour tortillas
2 cups shredded reduced-fat cheddar
salsa & sour cream (optional)

Directions

1. Preheat oven to 400 degrees F (200 degrees C).

2. In a large bowl, mash pinto beans. Stir in 3/4 cup salsa and garlic.

3. In a separate bowl, mix together 1/4 cup salsa, cilantro, black beans and tomatoes.

4. Place 1 tortilla in a pie plate or tart dish (or a cookie sheet will do). Spread 3/4 cup pinto bean mixture over tortilla to within 1/2 inch of edge. Top with 1/4 cup cheese, and cover with another tortilla. Spread with 2/3 cup black bean mixture, and top with 1/4 cup cheese. Repeat layering twice. Cover with remaining tortilla, and spread with remaining pinto bean mixture and cheese.

5. Cover with foil, and bake in preheated oven for about 40 minutes. Cut into wedges, and serve with salsa and sour cream.