Go Back
+ servings

Make Ahead Turkey Dinner Casserole

Sarah Remmer, RD
Don't feel like cooking for hours and hours on Christmas Day? Me neither! Skip the hassle, and try this delicious, make-ahead turkey dinner casserole. The best alternative to a traditional Christmas dinner!
5 from 1 vote
Prep Time 2 hours
Cook Time 1 hour
Additional Time 8 hours
Total Time 11 hours
Course Dinner
Cuisine American
Servings 8 large portions

Equipment

Ingredients
  

  • Roasted Turkey
  • 1 kg Turkey breast - bone in skin on if possible
  • 1 kg turkey thighs 2 thighs
  • 1/4 cup butter
  • 1 tbsp of mustard powder
  • 1 tsp each of dried sage dried oregano and dried thyme
  • Stuffing
  • 8 Cups of day old bread cubed or torn into small pieces Sourdough is my favourite for flavour.
  • 1 tablespoon of poultry seasoning
  • 1 tsp. celery salt
  • 1 tsp garlic powder
  • 1 small white onion finely chopped
  • 2 celery stalks finely chopped
  • 1/4 cup butter melted
  • 1 cup warm unsalted chicken broth
  • Mashed potatoes
  • 8 large baking potatoes peeled and cut into small even pieces 1”
  • 1 tablespoon of kosher salt
  • I cup of milk with 1/4 cup of butter
  • 1/4 plain greek yogurt
  • salt and pepper to taste
  • Gravy
  • Turkey drippings
  • 1/3 cup all-purpose flour
  • 1 cup potato water

Instructions
 

  • Step 1 (prep and cook turkey)
  • Preheat oven to 400F
  • Season your turkey meat with salt, pepper and garlic powder and place in a roasting pan
  • Melt the butter and then mix in mustard powder, dried sage, dried oregano and dried thyme.
  • Let butter mixture cool for 5 minutes then pour over turkey pieces.
  • Loosely tent turkey with foil. Place turkey in oven and immediately turn temperature down to 325 F.
  • Cook the turkey 20 minutes per pound or until the turkey breast has an internal temp of 170 -175F, basting every 20 minutes. Remove the foil for the last 40 minutes of roasting.
  • Step 2 (while the turkey is cooking, make your stuffing!)
  • Place all stuffing ingredients in a large bowl. Mix until well combined. Set aside (alternatively you can use your favourite stuffing mix to make 8-9 cups of stuffing).
  • Step 3 (make your mashed potatoes)
  • Place potatoes in large pot and cover with water. Add salt to water.
  • Bring to a boil with lid off. Turn heat down, cover potatoes and simmer for 10 minutes or until potatoes are tender.
  • Drain potatoes well - you want them to be dry.
    Save 1 cup of potato water for the gravy.
  • Warm the milk with the ¼ cup butter and add to drained potatoes. Mash really well (I like using a hand-held blender or food processor).
  • Add 1/4 plain Greek yogurt to potato mixture - stir to combine. Season with salt and pepper if needed. Set aside
  • Step 4 (Make your gravy)
  • Remove Turkey from the oven. Place turkey pieces on a cutting board and let cool for 10 minutes.
  • Pour the turkey drippings into a saucepan. Heat until bubbling and add 1/3 cup flour to make a roux.
  • Slowly add 1 cup of the saved potato water and whisk until smooth. Add more liquid if needed. Alternatively make your favourite gravy mix (at least 2 cups)
  • Step 5 (Put it all together!)
  • Remove turkey meat from bones and slice into large pieces.
  • Set up an assembly station with the turkey meat, potatoes, gravy and stuffing.
  • Lightly oil a large 9x13 inch baking dish
  • Layer stuffing on the bottom and lightly drizzle with gravy.
  • Layer the turkey meat on top of stuffing. Lightly drizzle with gravy.
  • Spread mashed potatoes over turkey and drizzle with 1 tablespoon of olive oil.
  • Cover with foil. Refrigerate overnight.
  • The next day, bake in a 325 oven for 1 hour. Take foil off for last 20 minutes. Let rest for 10 minutes.
  • Serve casserole with extra gravy, cranberry sauce and Roasted Vegetables. You can refrigerate casserole for 2-3 days or freeze for up to a month.

Notes

You can also make this into a turkey dinner leftover dish! Just layer your turkey leftovers into your baking dish and heat!
Tried this recipe?Let us know how it was!