This hearty vegan soup pairs creamy barley with leeks and mushrooms for classic comfort-food flavor. The simple flavors in this oil-free recipe will fill your kitchen with aromas transporting you back to childhood. Make a big batch and freeze extras for healthy, plant-based meals. Serve with Lacinato Kale Waldorf Salad, Italian Red Quinoa Fennel Citrus Winter Salad, or Quick Whole Wheat Flatbread.