Slice eggplant into 6 slices. Spray each slice of eggplant with cooking spray and season with salt and pepper.
Place each eggplant slice on the grill and cook on each side for 2 minutes, checking so they don’t burn.
Place each grilled eggplant slice on a sheet pan. Spread 1 tsp of tomato puree on each slice. Sprinkle equal amounts of tomatoes, feta, scallions, olives, and basil on top.
Bake for 8 minutes or until cheese softens and eggplant edges are brown.
Drizzle balsamic glaze over each tart. Serving size: 2 slices