1
Adjust rack to middle position and preheat oven to 450 degrees.
In a medium pot, bring 5 cups water (8 cups for 4 servings) to a boil, then reduce to a low simmer. (You’ll use the hot water in Step 4.)
Wash and dry produce. Trim and quarter zucchini lengthwise; cut crosswise into ½-inch-thick pieces. Halve grape tomatoes lengthwise. Halve, peel, and finely dice shallot. Peel and mince or grate garlic. Finely chop sun-dried tomatoes.