Leftover Prime Rib Pot Pie

By: Mandy Tanner

Cooked Prime Rib is used to make a delicious pot pie topped with flaky puff pastry. The pot pie ingredients can be prepared up to a day ahead of cooking. Just top with puff pastry before baking and you will have a warm and hearty meal to use up holiday leftovers. 


Prime Rib Pot Pie

  • 2 tablespoons avocado or olive oil
  • 2 tablespoons butter
  • 1 cup peeled and sliced carrots, from 2 medium carrots
  • 1 cup sliced celery, from 2 stalks
  • 1 cup chopped onion, from ½ medium onion
  • 2 cups (4 oz) sliced cremini, or other mushrooms, optional, from 5-6 mushrooms
  • 2 teaspoons fresh thyme leaves, divided
  • ¼ cup fresh chopped parsley
  • ¼ cup all-purpose flour
  • 3 cups beef broth or stock
  • 1 tablespoons Worcestershire
  • ¼ teaspoon kosher salt
  • ¼ teaspoon pepper
  • 1 ½ lb cooked Prime Rib, cut into bite size 1-inch pieces Buy Now
  • 1 cup (6 oz) fresh English peas, or frozen peas, thawed
  • 2 sheets frozen puff pastry, thawed but kept cold
  • 1 egg, beaten for egg wash

Prime Rib Pot Pie

In a large skillet over medium heat, add the oil, butter, carrots, celery, onions, and mushrooms, and cook, stirring occasionally, until the vegetables begin to caramelize and brown, 5-8 minutes. Add 1 teaspoon of thyme leaves, the parsley, and flour, and cook for 2 minutes stirring constantly, until fragrant and the flour is lightly golden brown.
Add the beef broth, Worcestershire, salt, and pepper, and bring to a simmer. Cook until thickened, and allow to reduce as needed. Note, the sauce will thin slightly once the beef is added and it cooks in the oven.
Remove from heat and stir in the beef, and peas. Let cool slightly, then transfer to a baking dish or cast-iron skillet. The pot pie can be cooled completely and covered and refrigerated at this point for up to 24 hours, or proceed to next steps for immediate cooking.
When ready to bake, preheat the oven to 425°F.
On a lightly floured surface, roll out the puff pastry sheets if needed, just slightly larger than the baking dish or cast-iron skillet. You may only need one sheet of pastry, depending on the size of the baking dish. Use a sharp knife to cut slits in the center to vent the pastry, and transfer to the baking dish, draping any excess pastry over the sides. The pastry can be trimmed or left hanging over the edges. Brush with egg wash, and top with reserved thyme leaves.
Place the baking dish on a rack in the center of the oven, and bake for 20-25 minutes until the pastry is deep golden brown and puffed. Reduce the oven temperature to 375°F, and continue baking for 10-15 minutes until the filling is bubbling.
Remove the baking dish from the oven and let cool slightly before serving. Enjoy!