Turkey Tetrazzini Recipe

Ingredients

• 5 slices white bread
• 2 tablespoons butter, melted
• 1/8 teaspoon salt
• ⅓ cup Parmesan cheese
• 2 tablespoons butter
• 8 ounces white mushrooms, cleaned and thinly sliced
• 1 medium white onions, chopped fine
• ¼ teaspoon salt, or to taste
• 1/8 teaspoon pepper, or to taste
• 4 quarts water
• 1 pound spaghetti or fresh egg pasta
• 1 teaspoon salt
• 4 tablespoons butter
• ¼ cup unbleached all-purpose flour
• 2 cups turkey stock or chicken stock
• ¾ cup Parmesan cheese
• 3 tablespoons dry sherry
• 2 teaspoons lemon juice
• 1 teaspoon dried thyme
• ¼ teaspoon fresh grated nutmeg
• reserved vegetables and pasta
• reserved béchamel sauce
• 4 cups leftover cooked turkey (or chicken), cut into 1/4-inch pieces
• 2 cups frozen peas
• 1 tablespoon butter
• reserved breadcrumbs