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The Ultimate Slow Cooker Chicken Casserole

A hearty and comforting chicken casserole made easy in the slow cooker, featuring tender chicken thighs, wholesome vegetables, and a creamy, flavorful sauce. Perfect for a cozy family meal.
Prep Time25 minutes
Cook Time4 hours
Total Time4 hours 25 minutes
Servings: 4 servings
Author: The Bright Food

Equipment

  • Large frying pan
  • Slow cooker
  • Lid
  • Two forks

Ingredients

Main Ingredients

  • 2 tbsp vegetable oil
  • 8 boneless chicken thighs (trimmed of fat)
  • 2 tbsp unsalted butter
  • 2 brown onions (peeled and diced)
  • 3 garlic cloves (peeled and minced)
  • 3 tbsp plain (all-purpose) flour
  • 1 tsp salt
  • 1 tsp black pepper
  • 1 tsp dried thyme
  • ½ tsp celery salt
  • 480 ml chicken stock (2 cups)
  • 1 tbsp freshly squeezed lemon juice
  • 16-20 baby chestnut mushrooms
  • 16-20 chantenay carrots
  • 3 celery sticks (roughly chopped)
  • 60 ml double (heavy) cream (1/4 cup)
  • small bunch parsley (chopped)

Instructions

Preparation

  • Heat vegetable oil in a large frying pan over medium-high heat, then brown chicken thighs for about 5 minutes until lightly colored before transferring them to the slow cooker.
  • Add butter to the same pan and melt it, then cook the diced onions for 5 minutes until softened, stirring occasionally.
  • Stir in minced garlic and cook for an additional minute.
  • Mix in flour, salt, pepper, thyme, and celery salt, cooking for 2 minutes.
  • Pour in chicken stock and lemon juice, stir, and bring the mixture to a boil, then transfer it into the slow cooker over the chicken.
  • Add mushrooms, carrots, and celery to the slow cooker and stir to combine.
  • Cover and cook on low for 5-6 hours or on high for 3-4 hours.
  • Once cooked, slightly shred the chicken with two forks and stir in the double cream.
  • Serve the casserole topped with fresh chopped parsley.

Notes

This casserole is delicious served with mashed potato and green beans.