Herbed Carrot and Leek Chunks, Oven-Steamed

When leeks and carrots are moistened with minced mushrooms, sealed in packets, and baked in their aromatic juices, a new richness emerges. Quickly assembled, the colorful, tender mélange is peppery, sweet, and woodsy. Pop into the oven while a roast rests, or bake alongside whole fish. Very simple, very special.