Prepared tomato sauce is really convenient. The problem most of them come seasoned with Italian herbs, great for pasta dishes, but not suited to other dishes -basil is not our favorite herb for fish, as an example. This home made basic tomato sauce can become Italian, by adding basil and oregano; French cuisine, by adding herbs the Provence and capers; good for game, by adding thyme and rosemary; good for fish, adding bay leaf and white wine.
Zucchini is high in fiber and low in calories. Using stock, skim milk, and evaporated milk we make lighter the traditional vichyssoise. Aromatic herbs and spices give extra flavor, as the curry does in this recipe.