1
Adjust rack to top position (top and bottom positions for 4 servings) and preheat oven to 425 degrees. Wash and dry produce.
Dice potatoes into ½-inch pieces. Trim, peel, and cut carrots on a diagonal into ½-inch-thick pieces. Trim and thinly slice mushrooms (skip if your mushrooms are pre-sliced!). Peel and mince or grate garlic. Trim and thinly slice scallions, separating whites from greens.