These nachos are a cinch to make and can turn after-school snack time into a fiesta!
Adjust oven rack to middle position and heat oven to 400 degrees. Set colander in sink. Open can of pinto beans and pour into colander. Rinse beans with cold water and shake colander to drain well. Measure out ½ cup beans; refrigerate remaining beans for another use.
Spread half of chips in even layer in 8-by-8-inch square baking dish. Sprinkle chips evenly with half of cheese.
Sprinkle beans over cheese, then sprinkle half of scallions on top. Repeat with remaining chips, cheese, and scallions.