Preheat oven to 425 degrees.
Arrange half of chips on a baking sheet. Top with half of beans, then half of each cheese.
Repeat layering with remaining chips, beans, and cheese and corn.
Bake until cheese is melted and gooey, about 5 minutes.
Serve nachos topped with pico de gallo, sliced jalapeño, scallions, cilantro and radishes.