Gather pita bread, gyro meat or lamb/beef, tomato, red onion, lettuce, tzatziki sauce, and optional fries
Slice the tomato and red onion
Warm the pita bread
Cook or reheat the gyro meat until hot
Place the meat in the center of the pita
Add tomato, onion, lettuce, and fries if using
Spoon tzatziki sauce over the filling
Fold the pita around the filling
Serve immediately