Lasagna Of Exotic Mushrooms | Emerils.com

Ingredients

• 2 tablespoons olive oil
• 1 cup minced yellow onions
• Salt and freshly ground black pepper to taste
• 2 ounces sliced prosciutto, finely chopped
• 1/2 cup finely chopped fresh parsley leaves
• 2 tablespoons minced shallots
• 2 tablespoons minced garlic
• 1 pound assorted wild and exotic mushrooms, such as chanterelles, oysters, shiitakes, and lobster mushrooms, wiped clean and coarsely chopped (about 5 cups)
• 2/3 cup dry white wine
• 2 pounds canned crushed tomatoes, undrained
• 2 tablespoons thinly sliced fresh basil leaves
• 1 tablespoon chopped fresh oregano leaves
• 2 cups fresh ricotta cheese
• 1 large egg
• 2 cups freshly grated Parmigiano-Reggiano cheese, plus more for garnish
• 2 cups grated fresh mozzarella cheese
• 1 cup heavy cream
• 2 pounds assorted potatoes, such as Idaho, red, and sweet, peeled and thinly sliced