Preheat oven to 350 degrees F.
Place 1 flour tortilla in the bottom of a pan (round or square, 8-9 inches)
Spread ⅓ cup salsa over the first tortilla.
Layer ½ the black beans, ½ the tomatoes tomato, ½ cup cheese on top.
Sprinkle 2 Tablespoons of cilantro and 2 Tablespoons green onion on top.
Layer the second flour tortilla on top.
Repeat steps 3-5 to create the second layer.
Layer third flour tortilla on top.
Spread remaining salsa and cheese and green onion on top.
Cover with aluminum foil and bake for 20 minutes,
Remove foil and bake for 10 minutes more or until cheese is melted.
Allow pie to set for about 10 minutes before serving.
Serve with toppings such as sour cream and guacamole.