In a small bowl, mix together the garlic, cumin, paprika, cinnamon, salt, and pepper.
Heat the olive oil in a skillet over medium-high heat. Add the beef slices and the spice mixture. Cook for 3-4 minutes, until the beef is browned and cooked through.
Warm the pita pockets in a toaster or oven.
Fill each pita pocket with a generous amount of the spiced beef and top with pickled vegetables.
Drizzle with Greek yogurt and garnish with fresh cilantro.
Serve immediately and enjoy!