Preheat oven to 400 degrees Fahrenheit. Place chicken cutlets in a baking dish. Sprinkle with spices and smear with BBQ sauce. Bake uncovered for approximately 40 minutes. When done, remove from oven and chop coarsely.  

Place the beef fry in a single layer in one baking pan, and do the same with the pastrami in another pan. Place in oven and bake for 20 minutes. Once done, remove from oven and coarsely chop. 

Heat oil in a large frying pan. Add onions and sauté until they’re deep brown. Add the chopped pastrami, beef fry, and chicken. Stir to combine and sauté a few minutes longer. 

Combine the ingredients in a small dish and set aside.

Roll out the dough onto a large baking sheet and sprinkle with salt, garlic, and parsley. Bake for 20 minutes. Remove from oven and drizzle with sweet and sour sauce. Arrange the chicken and meat on top. Drizzle with more sweet and sour sauce and spicy garlic mayo. Top with arugula and/or avocado, if desired.