Cod and Potato Casserole | Easy Baked Cod with Potatoes, Herbs & Creamy Sauce
This is such an easy dinner to make, cooked all in one pan so there’s hardly any washing up, and it’s perfect for a mid‑week meal. This cod and potato casserole is the kind of homely, comforting dish that feels just right on a chilly evening.
Tender flakes of cod, soft potatoes and a savoury sauce come together in one bubbling bake that’s simple to prepare and incredibly satisfying.
Serving Suggestions for Cod & Potato Casserole
- Simple Green Salad Crisp leaves with a lemon‑olive oil dressing to brighten the rich tomato base
- Garlic Green Beans Clean, savoury greens that pair beautifully with cod
- Tenderstem Broccoli Light, fresh veg that balance the warmth of the casserole
- Roasted Mediterranean Vegetables Peppers, courgettes and aubergine that echo the casserole’s flavours
- Roasted Cherry Tomatoes Sweet, blistered tomatoes that add acidity and lift
- Crusty Bread or Ciabatta Perfect for mopping up the tomato‑rich sauce
- Soft, Warm Focaccia A Mediterranean option that complements the fish and potatoes
- Lemon‑Garlic Spinach Bright, savoury greens that cut through the richness
- Cucumber & Herb Salad Cool, refreshing contrast to the warm casserole
- Peas or Minted Peas Sweet, vibrant peas that add colour and freshness
- Herby New Potatoes If you want extra carbs, these stay light and Mediterranean
- Roasted Carrots Sweet, caramelised carrots that complement the tomato base
- Marinated Olives Briny bites that enhance the Mediterranean feel
Variations: Cod & Potato Casserole
- Cod, Potato & Leek Casserole — swap onions for leeks for a sweeter, more delicate base.
- Cod, Potato & Spinach Casserole — wilt spinach into the sauce for colour and a soft, silky texture.
- Cod, Potato & Sweetcorn Casserole — add sweetcorn for pops of sweetness that brighten the dish.
- Cod, Potato & Pea Casserole — stir in peas for gentle sweetness and extra colour.
- Cod, Potato & Tomato Casserole — add chopped tomatoes for a lighter, brighter finish.
- Cod, Potato & Herb Casserole — increase parsley or dill for freshness that lifts the creamy base.
- Cod, Potato & Garlic‑Rich Casserole — add extra garlic for deeper aromatic warmth.
- Cod, Potato & Creamy Casserole — add more cream or cream cheese for a richer, indulgent sauce.
- Cod, Potato & Broccoli Casserole — include small broccoli florets for colour and extra veg.
- Cod, Potato & Courgette Casserole — add sliced courgette for a light, summery twist.
- Cod, Potato & Carrot Casserole — increase carrots for sweetness and a more rustic finish.
- Cod, Potato & Bacon Casserole — add crispy bacon for smoky savoury depth.
- Cod, Potato & Lemon Casserole — finish with lemon zest for a bright, citrusy lift.
- Cod, Potato & Mixed Pepper Casserole — add peppers for sweetness and colour
Cod and potato casserole
Flaky white cod baked with soft golden potatoes in a savoury sauce, creating a homely, comforting casserole with gentle colour, tender texture and a cosy, rustic feel.
Equipment
- Large lidded casserole dish
Ingredients
- 25 g salted butter
- 400 g baby potatoes, halved
- 2 leeks, sliced
- 2 tarragon sprigs
- 100 ml white wine
- 200 ml chicken stock
- 100 ml double cream
- 150 g frozen peas
- 4 cod fillets
- salt and pepper
Instructions
- Melt the butter in a large lidded saucepan or casserole dish, add the potatoes and leeks. Season with salt and pepper and cook for a few mins, stirring regularly.
- Add the tarragon and pour in the white wine and cook for 5mins. Add the stock and bring to the boil.
- Add the peas, cover the pan and turn down the heat and simmer until the vegetable are tender, this should take around 20mins.
- Add the double cream, place the cod fillets on top and cook for a further 10 – 15mins until the cod is cooked through. Serve immediately.