Preheat grill to medium-high heat.
Mix red peppers, green peppers, eggplant, onions, and tomatoes with 0.
25 tsp of black pepper, 1 tbsp of oil, and 0.
25 tsp of salt.
Place bell peppers, skin sides down, and onion on a grill that has been coated with cooking spray.
Grill for 10 minutes.
Turn onion and place eggplant onto a grill.
Remove peppers from grill and place in a ziplock bag and let stand for 10 minutes.
Grill onion and peppers for another 5 minutes and remove onion.
Turn eggplant and grill for an extra 5 minutes.
Remove the eggplant.
Add tomatoes to grill using a grill basket or foil basket.
Grill for 5 minutes.
Remove peppers from zip-lock bag and peel and discard skins.
Slice peppers lengthwise.
Combine 0.
25 tsp salt, vinegar, and sugar.
Add 2 tbsp of oil and stir with a whisk.
Combine vegetables, dressing, garlic, and olives.
Sprinkle with 0.
25 tsp of salt, 0.
25 tsp of pepper, basil, and chives.
Place on a serving dish and serve warm.