Vegetarian mushroom barley soup recipe Main DishVery Easy45 min Send this recipe to a friend Print this page Ask a question to the author Post your photo of this recipe Ingredients 4 1 cup barley 2 tablespoons extra virgin olive oil 1 medium onion 1 leek white and tender green parts chopped 2 cloves garlic 2 carrots 2 parsnips 10 fresh sage leaves 1 10-ounce pack mushrooms 2 tablespoons tomato paste 1 cup tomatoes 4 cups cooked beans 8 cups vegetable stock 1 teaspoon salt 1 bunch collard greens salt and pepper View the directions