In a small bowl, whisk the first 10 ingredients until blended. Pour 1/2 cup marinade into a shallow dish; stir in ouzo. Add pork; turn to coat. Refrigerate 8 hours or overnight. Cover and refrigerate remaining marinade., Drain pork, discarding marinade in dish. On 12 metal or soaked wooden skewers, alternately thread pork and vegetables. Grill kabobs, uncovered, over medium heat or broil 4 in. from heat until until pork is tender and vegetables are crisp-tender 12-15 minutes, turning occasionally and basting frequently with reserved marinade during the last 5 minutes. If desired, top with additional fresh thyme and rosemary and serve with tzatziki.