• In large resealable bag, combine pork, 1/4 cup oil, vinegar, lemon zest, lemon juice, garlic, oregano, mint, salt and pepper. Marinate for at least 1 hour or up to 24 hours.
• Remove pork from marinade, shaking off excess; discard marinade. Heat remaining oil in large skillet set over medium-high heat; sauté pork for 5 to 6 minutes or until just cooked through. Assemble pork in tortillas with lettuce, tomatoes, cucumber, red onion and olives; drizzle with tzatziki sauce.

Tips:

• Substitute chicken for pork if desired.
• Alternatively, thread marinated pork on skewers; grill instead of sautéing.
• Top tacos with finely crumbled feta cheese if desired.