Heat a little
olive oil in a large non-stick frying pan over medium heat. Add the onions,
salt lightly, and cook until they start to color, about 2 minutes. Add the peppers,
salt lightly, and continue
cooking for another 3 minutes. Add the
zucchini,
garlic, tomatoes,
tomato paste,
thyme, bay leaf, and half the water.
Season with
salt and
pepper. Cook the
vegetables until tender, about 15 minutes. Add more water if the pan gets too dry.
All the water should be evaporated before serving the
vegetables.