Shrimp and zucchini is another favorite Italian shellfish-and-vegetable combination. A little tomato gives this quick and delicious sauce a light, fresh flavor that is great with linguine or spaghetti.
Fill a pot for the pasta with about 6 quarts of water, place over high heat, and bring to a boil.
Peel the onion and finely chop it. Put the olive oil in a 12-inch skillet, add the chopped onion, and place over medium-high heat. Sauté until the onion turns a rich golden color, about 5 minutes.
Peel and thinly slice the garlic. Wash the zucchini, trim