Preheat the oven to 350°F. Spray a 13x9-inch baking dish with nonstick spray.
Mash 1 can of the beans in a bowl. Then, add the remaining beans, chili powder, and next 3 ingredients, stirring until blended.
In a medium bowl, stir together the salsa, queso dip, and sour cream.
Spoon about ½ cup of the black bean mixture down the center of each tortilla. Top each tortilla with 2 tablespoons of the salsa mixture. Roll the tortillas up, and place, seam-sides down, in a lightly-greased 13x9-inch baking dish. Pour the remaining salsa mixture evenly over the tortillas.
Bake for 30 to 35 minutes or until thoroughly heated.