Press some chocolate chips into each slice of marshmallow. Set out 4 graham wafers and divide
and top each with three slices of banana. Now top each graham wafer with 3 slices of chocolate-chip-studded marshmallows. Top the marshmallows on each graham wafer with another graham wafer, gently pressing on it to hold it place.
Set a large nonstick skillet over medium-low heat.
Set the stuffed wafers in the skillet and cover.
Cook until the marshmallows and chocolate chips just begin to melt and become gooey, about 3 to 5 minutes.
Cool slightly before devouring.