Stir together yogurt, light mayonnaise, 1 Tbsp. grated cucumber, chives, dill, lemon zest, lemon juice, salt, and pepper. Cook sausages according to package directions. Place sausages in buns. Top with yogurt mixture, shredded lettuce, red onion, diced tomato and cucumber, and Greek dressing.
Note: Nutritional analysis includes 480mg Sodium from hot dog.