To make chips, stack tortillas and cut into wedges with scissors or a sharp knife. Place wedges in a single layer on an ungreased baking sheet. Bake in a 350 degree F oven for 10 to 12 minutes or until light golden brown. Remove the chips from oven. Arrange the tortilla chips one layer deep, overlapping slightly, on an 11- or 12-inch ovenproof platter.
In a saucepan combine black beans and the 1/2 cup salsa; cook and stir over medium heat just until heated through. Remove from heat; spoon bean mixture over chips.
Sprinkle cheese, red peppers, and jalapeno peppers over bean mixture on chips. With a small sharp knife, slit pepperoncini peppers; remove stems and seeds. Cut into strips; sprinkle over nachos. Bake in a 425 degree F oven for 3 to 5 minutes or until cheese is melted. Serve immediately with additional salsa. Makes 12 servings.