1
Adjust rack to top position (top and middle positions for 4 servings) and preheat oven to 425 degrees. Bring 1 TBSP butter (2 TBSP for 4) to room temperature. Line a baking sheet with foil and lightly oil.
Wash and dry produce.
Trim and halve zucchini lengthwise; slice crosswise into ½-inch-thick half-moons. Trim, peel, and cut carrots on a diagonal into ½-inch-thick pieces (halve any larger carrots lengthwise first).