Heat oven to 440 degrees, Fahrenheit.
Cube and salted eggplant. Set on strainer for about 30 minutes while cutting up other veggies and starting to cook.
Cut all veggies into uniform, bite-sized pieces. (When in doubt about how big, remember it will all be reduced.)
Drizzle oil in Dutch oven. Over medium heat cook onion, garlic, bay leave and herbs de Provence until onions are translucent. Remove to a separate plate.
Repeat by sauteing the bell pepper and set aside.
Dry eggplant with paper towels. Drizzle a bit more oil in on a baking sheet and roast the eggplant for about 20 minutes or until starting to brown.
While eggplant is cooking, put tomatoes in a bowl, and break up with a potato masher until pulpy.
Remove eggplant to the dish with the onions and then roast zucchini in the same manner.
When zucchini is done, add everything into the Dutch oven, including mashed up tomatoes. Add sugar, salt, and pepper, cover and cook over medium-low heat for about 1.5 hours.