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Slow Cooker Turkey Pot Pie Filling

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A rich, velvety slow cooker turkey pot pie filling — tender turkey, sweet carrots, soft celery, golden potatoes, and bright green peas in a creamy, herb-scented sauce with Dijon mustard depth and a touch of Worcestershire. Made with leftover holiday turkey or fresh turkey thighs, slow-cooked until deeply flavored and perfectly cohesive. Spoon it under puff pastry, over biscuits, into ramekins, or straight into bowls with crusty bread. The most comforting filling you will ever make, with almost no effort at all.

  • Total Time: 8 hours 5 minutes
  • Yield: 6 – 8 servings 1x

Ingredients

Scale

The Turkey Base

  • 2 lbs (900g) bone-in turkey thighs (for raw method) — OR — 3 cups shredded cooked turkey (added in last 30–45 minutes)
  • 3 cups (720ml) low-sodium chicken or turkey broth

The Vegetables

  • 3 medium carrots, peeled and cut into ½-inch pieces
  • 3 stalks celery, diced
  • 1 large onion, diced
  • 2 medium Yukon Gold potatoes, cut into ¾-inch cubes
  • 2 cups cremini mushrooms, sliced (optional)
  • 4 cloves garlic, minced

The Herbs and Seasoning

  • 3–4 sprigs fresh thyme (or 1 tsp dried)
  • ½ tsp dried rosemary
  • ½ tsp dried sage
  • 2 bay leaves
  • 1 tsp salt (plus more to taste)
  • ½ tsp black pepper

The Sauce (Added or Prepared Separately)

  • 3 tbsp unsalted butter
  • 3 tbsp all-purpose flour (for roux method)
  • 1 tbsp Dijon mustard
  • 1 tsp Worcestershire sauce
  • ½ cup (120ml) heavy cream or half-and-half (added last 30 minutes)
  • 2 tbsp cornstarch mixed with 3 tbsp cold water (alternative thickener — choose roux OR cornstarch)

Added at the End

  • 1 cup frozen peas (last 15 minutes)
  • 1 cup frozen corn (optional, last 30 minutes)

To Finish

  • 2 tbsp fresh parsley, chopped
  • Salt and pepper to taste

For Serving (choose your pastry)

 

  • Store-bought puff pastry, thawed and baked separately
  • Refrigerator biscuits, baked separately or on top of filling
  • Homemade drop biscuits
  • Crusty bread

Instructions

  • Prepare the turkey. If using raw bone-in turkey thighs, season generously with salt and pepper. Place them in the bottom of the slow cooker. If using cooked turkey, set aside for later.
  • Make the roux (if using). In a skillet over medium heat, melt the butter. Add the flour and whisk constantly for 2 minutes until the roux is pale golden and smells slightly nutty. Slowly whisk in 1 cup of the chicken broth until smooth. Add the Dijon mustard and Worcestershire sauce and whisk to combine. Pour this sauce base into the slow cooker.
  • Add the vegetables and remaining broth. Add the carrots, celery, onion, potatoes, mushrooms (if using), and garlic to the slow cooker. Pour in the remaining chicken broth. Add the thyme sprigs, rosemary, sage, bay leaves, salt, and pepper. Stir to combine.
  • Cook. Set the slow cooker to LOW and cook for 7–8 hours (if using raw turkey), or 5–6 hours (if using cooked turkey added later). The vegetables should be tender and the broth flavorful and slightly thickened.
  • Shred the turkey (if using raw). Remove the cooked turkey thighs from the slow cooker. Discard the skin and bones. Shred the meat into bite-sized pieces and return to the slow cooker.
  • Add cooked turkey (if using leftover). If using leftover or rotisserie turkey, stir it in now.
  • Thicken the sauce (if using cornstarch method). If not using a roux, whisk together the cornstarch and cold water until smooth. Pour into the slow cooker and stir well.
  • Add cream and corn. Stir in the heavy cream and frozen corn (if using). Replace the lid and cook on HIGH for 20–30 minutes until the cream is incorporated and the sauce has thickened to a creamy, coating consistency.
  • Add peas. Stir in the frozen peas. Replace the lid and cook for a further 15 minutes until just heated through and bright green.
  • Remove herbs and finish. Remove and discard the thyme sprigs and bay leaves. Stir in the fresh parsley. Taste and adjust seasoning generously — the filling should be well-seasoned, slightly saucy, and rich. It is ready to serve.
  • Serve. Ladle the filling into bowls, over biscuits, under puff pastry, or into ramekins. Garnish with extra fresh parsley and a crack of black pepper.

Notes

  • Roux vs cornstarch — both work. The roux method (butter and flour cooked together before adding to the slow cooker) produces a slightly richer, more buttery sauce with a rounder body. The cornstarch method is faster, gluten-free friendly, and equally effective at thickening. Choose based on what you have and how much time you want to spend at the stovetop.
  • Add cream late. Heavy cream added at the beginning of a long slow cook can separate and become grainy. Adding it in the last 30 minutes preserves its creaminess and produces a silky, cohesive sauce.
  • Peas go in last. Ten minutes is all they need — they should be bright green and just tender, not grey and mushy. This is non-negotiable.
  • Season the filling well. Everything goes under a bland pastry lid. The filling needs to carry all the flavor for both components. Taste before serving and be generous with the seasoning — it should taste confidently flavored, not delicate.
  • Don’t make the sauce too thick. The right consistency flows slowly from a spoon — it should not hold a shape. If it seems too thick after the cream is added, stir in a splash more broth.
  • Bone-in turkey makes the best broth. The collagen from the bones enriches the sauce during the long cook. If you have the choice between boneless and bone-in, always choose bone-in.
  • The Dijon mustard is essential. It does not make the filling taste mustardy — it adds a sharp, complex depth that makes the sauce taste more sophisticated and alive. Do not omit it.
  • Author: Elle
  • Prep Time: 20 minutes
  • Cook Time: 7 hours 45 minutes (on LOW, including final additions)
  • Category: Comfort Food, Dinner, Main Dish
  • Method: Slow Cooking
  • Cuisine: American
  • Diet: Gluten-Free

Find it online: https://slowcookerrecipes.us/slow-cooker-turkey-pot-pie-filling/