Ratatouille without tortellini oregano

1 tablespoon extra virgin olive oil 1 cup diced yellow onions or 1 cup sweet onion 1 cup diced zucchini 1 cup diced yellow squash 1 cup diced eggplant 1 diced[...]

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

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