These bite-sized Greek burgers pack classic Mediterranean flavors into mini pita pockets. The lean ground beef is seasoned with oregano, thyme, and balsamic vinegar before being pan-seared to a juicy finish. They make an excellent appetizer for entertaining or a fun weeknight dinner for the family. A quick homemade yogurt and dill sauce adds a bright, creamy contrast to the savory meat and crisp fresh cucumbers.