Open Face Sandwich with Mushroom and Cheese is a famous Polish street food called Zapiekanka or Zapiekanki in the plural. You can find them on every corner in Poland.
Baguette | Mushrooms Butter | Shredded Cheese Ketchup | Chives Salt | Pepper
COOK MUSHROOMS Melt the butter and sauté mushrooms with salt and pepper.
PREPARE SANDWICH Cut your baguette in half lengthwise, add mushrooms on each half and top with shredded cheese.
BAKE Bake in the oven for about 7 minutes. Once cooked, add ketchup and sprinkle with chives or scallions.