Stir together barbecued pork, black beans, and 1/2 cup barbecue sauce in a medium bowl.
Place 1 tortilla in a lightly greased 10-inch springform pan, and spread with one-third pork mixture. Sprinkle with one-third each of tomatoes, green onions, and cheese. Repeat layers twice. Top with remaining tortilla, and gently press. Cover pan with aluminum foil.
Bake at 400° for 15 to 20 minutes or until golden brown. Remove sides of pan, and cut into wedges. Serve with Avocado Mash and desired toppings. Garnish, if desired.
BBQ Beef Quesadilla Torta: Substitute 2 cups chopped barbecued beef for pork, and proceed with recipe as directed.
BBQ Chicken Quesadilla Torta: Substitute 2 cups chopped barbecued chicken for pork, and proceed with recipe as directed.