Dinner

Easy One-Pot Chicken Casserole Recipe

ByNoah Steele November 11, 2025November 11, 2025

Introduction

This easy one-pot chicken casserole is a comforting and hearty meal perfect for busy weeknights. Tender chicken thighs simmer with fresh vegetables and fragrant herbs for a deliciously simple dinner.

The image shows a bowl of stew with two pieces of cooked chicken thighs placed on top, surrounded by small whole potatoes, sliced carrots, and green peas in a light broth. The chicken has a slightly golden, soft texture with small chopped green herbs sprinkled over it. The potatoes are pale yellow and smooth, the carrots are cut into thick slices with a bright orange color, and the peas are small, round, and bright green, scattered in the broth. The stew is served in a white bowl with blue and red floral patterns around the edge, set on a beige cloth on a wooden surface, all against a white marbled background. A woman’s hand holds a fork resting on the side of the bowl. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

8 bone-in chicken thighs, skin pulled off and discarded
1 tbsp oil

5 spring onions, sliced
2 tbsp plain flour

2 chicken stock cubes
2 large carrots, cut into batons (no need to peel)

400g new potatoes, halved if large
200g frozen peas
1 tbsp grainy mustard

Small handful fresh soft herbs, like parsley, chives, dill or tarragon, chopped

Instructions

Step 1: Put the kettle on to boil. Heat the oil in a casserole or wide pan with a lid and fry the chicken thighs to brown them quickly on all sides.
Step 2: Stir in the whites of the spring onions, flour, and crumbled chicken stock cubes until the flour disappears.

Step 3: Gradually stir in 750ml of hot water from the kettle, then add the carrots and new potatoes. Bring the mixture to a simmer.
Step 4: Cover the pan and cook for 20 minutes, allowing the vegetables and chicken to tenderize.
Step 5: Remove the lid and simmer uncovered for another 15 minutes to thicken the sauce slightly.

Step 6: Add the frozen peas and cook for a further 5 minutes until heated through.
Step 7: Stir in the grainy mustard, green parts of the spring onions, chopped fresh herbs, and season with salt and pepper to taste. Serve warm.

Tips & Variations

For extra flavor, add a splash of white wine or a squeeze of lemon juice before simmering.

Swap new potatoes for sweet potatoes to add a natural sweetness to the dish.
Use different soft herbs according to your preference or what’s available in your kitchen.

Storage

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove or in the microwave until piping hot before serving. This casserole does not freeze well due to the potatoes.