Ratatouille without clove ginger olive

1 large zucchini , scrubbed and cut into 1/2-inch dice 1 large eggplant , cut into 1/2-inch dice 2 teaspoons kosher salt 1/4 cup extra virgin olive oil ,[...]

4 zucchini , thickly sliced lengthwise 4 roma tomatoes , halved 2 white onions, cut into wedges 1 red capsicum , quartered and seeded 1 yellow capsicum ,[...]