Portobello Sandwich With Mashed Root Vegetable Mushroom Stew | Emerils.com

Ingredients

• 1 medium-size carrot, chopped
• 1 medium-size parsnip, peeled and chopped
• 1 small sweet potato, peeled and diced
• 5 tablespoons olive oil
• Salt and freshly ground white pepper to taste
• 1 1/2 pounds Idaho potatoes, peeled and diced
• 1/2 cup heavy cream
• 4 tablespoons (1/2 stick) unsalted butter
• 8 fresh Portobello mushrooms, stemmed and wiped clean
• 1/2 cup minced yellow onions
• 1/4 pound assorted wild and exotic mushrooms, such as shiitakes, oysters, and chanterelles, wiped clean and sliced (about 4 cups)
• 1 tablespoon chopped garlic
• 1 tablespoon chopped fresh parsley leaves
• 2 cups Veal Reduction
• 1/4 pound shaved Parmigiano-Reggiano cheese