Mix all ingredients except pita, mixing well and kneading until mixture is stiff. On skewer pack meat mixture about 5" long and not more than 2" in diameter. Put as many "fingers" as possible on a skewer leaving a 1" space in between. Cook over hot coals 10-15 minutes, turning frequently. Take pita and slide gyro into center. Drizzle with sauce. Fold over to eat. Sauce: Tzatziki 1 c yogurt, 1 T mayo, juice of 1 lemon, 2 scallions including green tops, (finely chopped), cucumber (minced), 5 cloves garlic (minced). Mix well.