Thanksgiving Leftovers Turkey Shepherd's Pie

From The Essence of Emeril Thanksgiving Leftovers show. This sounds soooo yummy!

• Ready In: 1 hr
• Serves: 4-6

Ingredients

• 1  tablespoon unsalted butter
• 4  teaspoons olive oil
• 1  cup  chopped yellow onion
• 2  carrots, peeled and chopped (about 1 cup)
• 1⁄4 teaspoon  spice essence or 1⁄4 teaspoon  creole seasoning, recipe follows
• 1⁄4 teaspoon salt, plus
• 1⁄8 teaspoon salt
• 1⁄2 teaspoon fresh ground black pepper
• 1  teaspoon  minced garlic
• 4  ounces mushrooms, stemmed, wiped clean, and sliced
• 1⁄2 teaspoon  chopped fresh thyme leave
• 1  bay leaf
• 1  tablespoon all-purpose flour
• 2  teaspoons tomato paste
• 2 -2 1⁄2 cups  chopped  roasted turkey (white and or or dark meat) or 2 -2 1⁄2 cups  shredded  roasted turkey (white and or or dark meat)
• 1 1⁄4 cups  chicken stock or 1 1⁄4 cups canned chicken broth
• 1⁄2 cup green peas
• 4  cups  leftover mashed potatoes
• 3⁄4 cup  grated sharp cheddar cheese or 3⁄4 cup cheddar cheese
•  chopped fresh parsley leaves, for garnish

• ESSENCE

• 2 1⁄2 tablespoons paprika
• 2  tablespoons salt
• 2  tablespoons garlic powder
• 1  tablespoon black pepper
• 1  tablespoon onion powder
• 1  tablespoon cayenne pepper
• 1  tablespoon dried oregano
• 1  tablespoon dried thyme

Directions

1. Preheat the oven to 400 degrees F. Lightly grease a 9-inch square or 2.2 quart baking dish with the butter and set aside.
2. In a large saute pan or skillet, heat the oil over medium-high heat. Add the onions, carrots, Essence, salt, and pepper and cook, stirring, until the onions are soft, about 3 minutes. Add the garlic and cook, stirring, for 20 seconds. Add the mushrooms, thyme, and bay leaf and cook, stirring, until the mushrooms are soft, 3 to 4 minutes. Add the flour and cook, stirring, until thick, about 1 minute. Stir in the tomato paste and cook, stirring, for 1 minute. Add the meat and stir well to combine. Gradually add the stock and then the peas, and bring to a boil. Reduce the heat to medium-low and simmer until the mixture is thickened, 6 to 8 minutes.
3. Remove from the heat and discard the bay leaf. Carefully transfer to the prepared dish and spoon the potatoes over the meat mixture, spreading to the edges. Sprinkle with the cheese and bake until the cheese is bubbly and the potatoes are crisp around the edges, 22 to 25 minutes.
4. Let sit for 10 minutes before serving. Garnish with chopped parsley and serve.