1
Adjust rack to top position (top and middle positions for 4 servings) and preheat oven to 425 degrees. Wash and dry produce.
Trim and halve Brussels sprouts. Trim, peel, and cut carrots on a diagonal into ½-inch-thick pieces. Halve, peel, and cut onion into ½-inch-thick wedges. Halve tomato; cut into ½-inch-thick wedges. Peel and mince or grate garlic. Zest and quarter lemon.