Preparation
Preheat oven to 400 degrees. Spray a baking dish with cooking spray and set aside.
Chop onion and garlic while heating oil in a large skillet. Cook onion and garlic in oil for 2 min., while you rinse/drain the beans and measure the salsa and chili powder. Add beans, 1/2 c. salsa, and chili powder to onions/garlic and heat through. Remove from heat and stir in 2 c. of the cheese.
Spread black bean mixture down center of each tortilla. Roll up, and place seam-side down in baking dish. Spoon extra salsa on top and sprinkle with remaining 1 c. cheese.
Bake for 15 minutes.
If desired, top with sour cream, cilantro, and/or extra green onion slices as a garnish.