Make Ahead Tip: Prepare through Step 4, cover and refrigerate the zucchini, lemon peel and dressing for up to 1 day. Bring to room temperature before serving.
Tips: To toast sliced or chopped nuts, place in a small dry skillet and cook over medium-low heat, stirring constantly, until fragrant and lightly browned, 2 to 4 minutes.
Use a vegetable peeler to shave thin curls or slivers off a block of hard cheese like Parmigiano-Reggiano.
To oil a grill rack, oil a folded paper towel, hold it with tongs and rub it over the rack. (Do not use cooking spray on a hot grill.)
1 1/2 vegetables, 2 fat