Cut 4 slices of Barbari bread about 4 inches each. You will probably have leftover bread for another time. Slice each slice in half so you have eight open pieces of bread.
Put parchment paper on the half sheet pan and then put the rack on top of the paper for super fast clean up. Put the bread on the rack.
Toss the cheeses together and sprinkle them evenly on the slices of bread.
Add the slices of pepper, and sprinkle the bread liberally with the Aleppo pepper.
Heat the oven to 400 °F (204 °C) and put the pan with the bread in the oven. Bake the sandwiches for about 10 minutes or until the cheese is melting and starting to brown.
Remove the sandwiches from the oven and serve, two slices per person.
Scan for full nutrition info and step-by-step photos.