Combine Souvlaki ingredients in large freezer bag or baking dish. Let marinate for at least 8 hours stirring up occasionally.
Combine Tzatziki sauce ingredients in a bowl let stand in fridge 8 hrs stirring occasionally.
At dinner time mix lemon butter sauce in small pot, heat just enough to melt butter and let stand. Skewer pork and BBQ until cooked to desired doneness. Serve souvlaki beside Tzatziki sauce with greek salad and plain rice. Pour reheated lemon butter sauce over souvlaki, rice, and salad. Enjoy.