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9x13 baking dish full of leftover Thanksgiving casserole with turkey and stuffing.
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Leftover Thanksgiving Casserole

This Thanksgiving leftover casserole layers stuffing, turkey and gravy, green beans, cranberry sauce, and mashed potatoes, then bakes it all under melted cheddar and crispy fried onions. It's an easy way to turn your holiday leftovers into a whole new dinner.
Course Main Course
Cuisine American
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 6 servings
Calories 500kcal
Author Karly Campbell

Ingredients

  • 3 cups chopped leftover turkey
  • 1 1/2 cups gravy leftover or from a jar
  • 1 1/2 cups cooked green beans
  • 2 1/2 cups leftover stuffing warmed
  • 1/2 cup leftover cranberry sauce
  • 3 cups mashed potatoes warmed
  • 1 cup shredded cheddar cheese
  • 1/2 cup french fried onions
  • Chopped parsley for garnish

Instructions

  • Preheat the oven to 375 and spray a 9x13 baking dish with non-stick cooking spray. Combine the turkey, gravy and green beans in a large mixing bowl. Stir to combine.
  • Spread the stuffing evenly on the bottom of the baking dish.
  • Pour the turkey and gravy mixture evenly over the stuffing.
  • Add dollops of cranberry sauce evenly over the turkey layer and spread it out as best you can. Spread the mashed potatoes over the top of it all.
  • Add shredded cheddar cheese to the top, cover with foil and bake for 25 minutes. Uncover, sprinkle with the fried onions and continue baking for 10-15 minutes, or until the casserole is heated through.
  • Let rest for 5 minutes, sprinkle with parsley and serve.

Notes

Lightly warming up the stuffing and mashed potatoes will help them to spread a bit easier in the casserole dish. It’s not totally necessary, but does make things a bit easier.
If you don’t have leftover green beans, feel free to just stir in drained canned green beans. No need to cook them first, so long as they’re canned and not fresh. Leftover green bean casserole works great here as well.
Feel free to season the layers with salt and pepper as needed. Since this is starting with leftovers, we’re assuming it’s already nicely seasoned.
I like to serve this with extra gravy on the side to pour over it all.

Nutrition

Calories: 500kcal | Carbohydrates: 59g | Protein: 22g | Fat: 20g | Saturated Fat: 7g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 5g | Trans Fat: 0.03g | Cholesterol: 59mg | Sodium: 921mg | Potassium: 581mg | Fiber: 5g | Sugar: 12g | Vitamin A: 680IU | Vitamin C: 28mg | Calcium: 184mg | Iron: 2mg