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Creamy Chicken Casserole with Vegetables and Mashed Potatoes Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.8 from 55 reviews
  • Author: admin
  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Total Time: 1 hour 20 minutes
  • Yield: 8 servings
  • Category: Main Course
  • Method: Baking
  • Cuisine: Western/European

Description

This Creamy Chicken Casserole is a comforting and hearty dish featuring tender chicken breast, mixed vegetables, and a rich creamy sauce baked to perfection. Served over fluffy mashed potatoes and garnished with fresh Italian parsley, it’s an ideal meal for family dinners or cozy gatherings.


Ingredients

Scale

Main Ingredients

  • 2 tsp olive oil
  • 1 onion, finely chopped
  • 2 carrots, peeled and roughly chopped
  • 2 celery sticks, roughly chopped
  • 4 cloves garlic, crushed
  • 1 Tbsp butter
  • 2 Tbsp flour
  • 750 ml chicken stock
  • 1 kg boneless chicken breast, diced
  • 1 cup frozen peas, thawed
  • 1 cup cream
  • 3 Tbsp cornflour

To Serve

  • Mashed potato
  • Italian parsley, chopped


Instructions

  1. Preheat oven: Preheat your oven to 180°C fan bake to prepare for baking the casserole.
  2. Cook vegetables: Heat a large cast-iron casserole dish over medium heat. Add olive oil, then sauté the chopped onion, carrots, and celery for about five minutes until the onion starts to soften.
  3. Add garlic and butter: Stir in the crushed garlic, then create a small gap in the dish and add butter. Wait until it begins to bubble.
  4. Make roux: Sprinkle flour over the butter and vegetables, then stir well to combine. Cook for two minutes to remove the raw flour taste.
  5. Add chicken stock: Gradually pour in half of the chicken stock while deglazing the base with a wooden spoon. Add the remaining stock, then add the diced chicken breasts.
  6. Bake the casserole: Cover with a lid and transfer the dish to the oven. Bake for 45 minutes until the chicken is cooked through and vegetables are tender.
  7. Finish sauce: Remove from oven. Add thawed peas and cream. Mix the cornflour with cold water to create a slurry, then stir it into the casserole. Uncover and bake for an additional 15 minutes until the sauce thickens.
  8. Season and serve: Taste and season with salt and pepper as needed. Serve hot over mashed potatoes, garnished with chopped parsley.

Notes

  • Use a heavy casserole dish with a lid for even cooking.
  • Ensure chicken is fully cooked before serving by checking it’s no longer pink inside.
  • Adjust seasoning at the end depending on your taste preference.
  • The cornflour slurry helps thicken the sauce without lumps.
  • Mashed potatoes can be homemade or store-bought for convenience.