1
medium or 2 small eggplant, cut into 1/2-inch dice
4 tablespoons
olive oil, divided, plus more to taste
2
medium onions, cut into 1/2-inch dice
4
to 6 garlic cloves, chopped
1/2 bunch
basil, tied in a bouquet with kitchen twine + 6 basil leaves, chopped
1 pinch
dried chile flakes
2
sweet peppers, cut into 1/2-inch dice
3
medium summer squash, cut into 1/2-inch dice
3
ripe medium tomatoes, cut into 1/2-inch dice