Grilled Vegetable Meze Platter with Carrot Tzatziki

Name: Grilled Vegetable Meze Platter with Carrot Tzatziki
Ingredients: ½ lb. carrots (orange, red, or yellow); 2 clove garlic; 3 tbsp. extra-virgin olive oil; 1½ c. reduced-fat Greek yogurt; Grated zest and juice of 1 lemon; 2 tbsp. chopped fresh basil; ¼ tsp. Kosher salt; ¼ tsp. black pepper; 8 baby artichokes; ¼ c. extra-virgin olive oil; 8 baby eggplants; 8 baby carrots; 8 baby summer squash; 1 tsp. Kosher salt; 1 tsp. black pepper