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Turkey and Mashed Potatoes Casserole

The Best Turkey and Mashed Potatoes Casserole for Thanksgiving Leftovers


  • Author: Lyndy
  • Total Time: 45 minutes
  • Yield: 6 servings 1x

Description

This Turkey and Mashed Potatoes Casserole is the ultimate way to use Thanksgiving leftovers. With layers of turkey, creamy mashed potatoes, veggies, and cheese, it transforms holiday extras into a cozy, comforting meal the whole family will love.


Ingredients

Scale
  • 2 cups cooked turkey, chopped or shredded
  • 3 cups leftover mashed potatoes
  • 1 cup frozen mixed vegetables (peas, carrots, corn)
  • ½ cup turkey gravy or cream of chicken soup
  • 1 cup shredded cheddar cheese, divided
  • ¼ cup milk (to thin mashed potatoes if needed)
  • ½ tsp garlic powder
  • ½ tsp onion powder
  • Salt and black pepper, to taste
  • Optional topping: ½ cup breadcrumbs or leftover stuffing

Optional Add-Ins:

  • Chopped cooked bacon
  • Leftover cranberry sauce on the side
  • A dash of smoked paprika

Instructions

  1. Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish.
  2. Mix the filling: In a bowl, combine turkey, vegetables, gravy (or soup), half the cheese, garlic powder, onion powder, salt, and pepper.
  3. Layer casserole: Spread the turkey mixture into the prepared baking dish.
  4. Add mashed potatoes: Loosen with milk if needed, then spread evenly over the turkey layer.
  5. Top with cheese: Sprinkle remaining cheddar on top. Add breadcrumbs or stuffing if using.
  6. Bake: Bake 25–30 minutes until hot and bubbly with a golden top.
  7. Rest & serve: Let cool for 5–10 minutes before slicing.

Notes

  • Mix dry turkey with a little gravy to keep it moist.
  • Season mashed potatoes well for extra flavor.
  • Add a crunchy topping for the best texture.
  • Let casserole rest after baking so layers hold together.
  • Freeze unbaked casserole for up to 2 months.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Casserole
  • Method: Baked
  • Cuisine: American

Nutrition

  • Serving Size: 1 portion

Keywords: Turkey and Mashed Potatoes Casserole, Thanksgiving Leftover Recipes, Turkey Casserole, Mashed Potato Casserole, Leftover Turkey Ideas, Easy Turkey Bake, Cheesy Turkey Casserole