In a large bowl, whisk together the olive oil, lemon juice, garlic, za’atar, salt, and pepper.

Heat a grill or grill pan to medium-high heat.

Place the eggplant and red pepper pieces on a large plate or in a large baking dish and drizzle with olive oil and sprinkle with salt and pepper. Toss to coat.

Place the eggplant and pepper on the hot grill and cook for 2 to 5 minutes per side, or until well charred and tender. Remove from the grill and chop into 1-inch pieces.

Add the grilled veggies to the bowl with the dressing and stir to coat. Let sit for 5 minutes, then fold in the tomatoes, feta, pickled red onions, and half the basil and mint. Season to taste, garnish with the remaining basil and mint, and serve.