Eggplant Parmesan
3 medium-large eggplants, cut crosswise into ½-inch slices olive oil 1 large onion, finely chopped 1 large clove garlic, thinly sliced 1-½ teaspoons dried oregano 128-ounce can no-salt crushed tomatoes 1 tablespoon red wine vinegar ½ cup (packed) chopped, fresh…