Step 1

Arrange a rack in the middle of the oven and heat the oven to 425°F. Line a rimmed baking sheet with aluminum foil.

Step 2

Prepare the following, keeping them separate: Drain and rinse 1 can black beans. Drain 1 can sliced black olives. Grate 12 ounces sharp cheddar or Monterey jack cheese on the large holes of a box grater (about 3 cups). Chop 1 roma tomato. Thinly slice 8 scallions and 1 small jalapeño.

Step 3

Shred 1 pound cooked chicken into a medium bowl. Add 1/2 cup salsa and toss to combine.

Step 4

Build the nachos: arrange about half of a 16-ounce bag of tortilla chips on the baking sheet in an even layer. Top with half of the seasoned chicken and a handful of shredded cheese. Layer the remaining chips on top, followed by the remaining chicken and cheese. Sprinkle with the black beans.

Step 5

Bake the nachos until the cheese is melted and the chips around the edges are beginning to brown, about 8 minutes. Just before serving, garnish with the black olives, jalapeño, tomato, dollops of sour cream, and scallions.