Budget-Friendly Cottage Pie with Potato and Swede Mash

A comforting cottage pie is always a welcome addition to a family dinner table. This version combines savoury beef mince, carrots and a rich tomato-based gravy with a fluffy potato and swede topping. Finished under the grill until lightly golden, it makes a satisfying meal using familiar supermarket ingredients.

Adding swede to the mash is a simple way to include another vegetable without losing the comforting texture of a traditional cottage pie. Serve it with green beans and peas for a complete family dinner.

This recipe serves four and is a useful option for a weekly family meal plan, particularly when you want to make the most of everyday ingredients.

Why You’ll Love This Cottage Pie

• Made with affordable, widely available UK supermarket ingredients.

• Serves four, making it suitable for family dinners.

• Includes extra vegetables in both the filling and topping.

• Uses lean beef mince for a hearty, satisfying filling.

• Can be prepared ahead and finished under the grill before serving.

Recipe at a Glance

Ingredients

For the potato and swede topping

• 450g floury potatoes, such as King Edward or Désirée, peeled and roughly chopped

• 450g swede, peeled and roughly chopped

• 1 egg, beaten

• 3–4 tbsp vegetable stock

• Salt and freshly ground black pepper, to taste

For the beef filling

• Low-calorie cooking spray

• 1 large onion, finely chopped

• 500g lean beef mince (5% fat or less)

• 1 × 400g tin chopped tomatoes

• 250g passata

• 4 tsp Worcestershire sauce

• 1 tsp mustard powder

• 1 beef stock cube

• 3 carrots, diced

• 1 tsp dried mixed herbs

• Salt and freshly ground black pepper, to taste

To serve

• 200g green beans, trimmed

• 150g frozen peas

How to Make Cottage Pie with Potato and Swede Mash

1. Prepare the topping

Place the chopped potatoes and swede in a large saucepan and cover with water. Bring to the boil, then cook for approximately 15 minutes, or until both vegetables are tender enough to mash.

Drain thoroughly and return them to the warm saucepan. Add half the beaten egg and mash until smooth, gradually mixing in enough vegetable stock to create a soft, spreadable texture. Season to taste and set aside.

2. Soften the onion

While the potatoes and swede are cooking, lightly coat a large non-stick frying pan with cooking spray.

Add the chopped onion and cook over a low heat for approximately 5 minutes, stirring occasionally, until softened.

3. Brown the beef

Increase the heat to medium and add the beef mince. Cook for approximately 5 minutes, breaking it apart with a wooden spoon, until browned throughout.

4. Make the filling

Stir in the chopped tomatoes, passata, Worcestershire sauce and mustard powder.

Crumble in the beef stock cube, then add the diced carrots and dried mixed herbs. Mix well and season lightly.

Cover and simmer gently for approximately 30 minutes, stirring occasionally, until the carrots are tender and the sauce has thickened. If the mixture looks too wet, remove the lid for the final few minutes to allow some liquid to evaporate.

5. Assemble the cottage pie

Preheat the grill to a medium setting.

Transfer the beef mixture to a suitably sized, grill-safe ovenproof dish. Spoon the potato and swede mash evenly over the filling.

Use a fork to create small ridges across the surface, then brush with the remaining beaten egg. These ridges will help the topping develop a lightly golden finish.

6. Grill until golden

Place the dish under the grill for approximately 5 minutes, watching carefully, until the topping is lightly golden.

Make sure the filling is thoroughly hot before serving.

7. Prepare the vegetables and serve

Meanwhile, cook the green beans and frozen peas in simmering water for 3–4 minutes, or until tender.

Drain well, divide the cottage pie into four portions and serve with the vegetables alongside.

Tips for Making a Good Cottage Pie

Drain the vegetables properly. Excess water can make the potato and swede topping too loose, so allow them to steam-dry briefly after draining.

Give the filling time to thicken. A filling with too much liquid can make the mash sink into the beef mixture. Simmer uncovered towards the end if necessary.

Use a fork to texture the topping. The small ridges create extra surface area, helping the mash turn golden under the grill.

Choose the right dish. Because this recipe finishes under the grill, check that your ovenproof dish is also suitable for grilling.

Budget-Friendly Ingredient Swaps

This cottage pie is flexible enough to work with ingredients you may already have at home.

• Use supermarket own-brand chopped tomatoes and passata.

• Replace some of the carrots with other suitable vegetables that need using up.

• Use frozen green beans instead of fresh if they are more convenient.

• If you prefer a more traditional topping, replace the swede with the same weight of extra potatoes.

For a variation using less beef, you could replace a portion of the mince with cooked lentils. This would change the original recipe, so ensure the filling remains thick enough before adding the topping.

Can You Make Cottage Pie Ahead?

Yes. Prepare the beef filling and mash, then allow them to cool before assembling the pie. Cover and refrigerate promptly.

When ready to serve, reheat in the oven until piping hot throughout. The brief grilling step used in the original recipe is intended to brown an already-hot filling and is not sufficient on its own to thoroughly reheat a chilled pie.

How to Store and Reheat Leftovers

Allow leftovers to cool, then place them in an airtight container and refrigerate promptly. Eat within 48 hours.

Reheat thoroughly until piping hot throughout. For best results, use an oven-safe dish and cover loosely during reheating to help prevent the topping from drying out.

You can also freeze cooled portions in suitable containers. Defrost thoroughly in the fridge before reheating, and avoid reheating the same portion more than once.

Frequently Asked Questions

What is the difference between cottage pie and shepherd’s pie?

Cottage pie is traditionally made with beef, while shepherd’s pie uses lamb. Both typically feature a savoury meat filling topped with mashed potato.

Can I make cottage pie without swede?

Yes. Replace the swede with an equal quantity of potatoes if you prefer a classic mashed potato topping.

Can I use frozen vegetables?

Yes. Frozen peas and green beans work well as side vegetables, making them convenient options for a weekly family meal plan.

Why is my cottage pie watery?

The filling may not have reduced enough, or the mashed vegetables may contain excess moisture. Drain the potatoes and swede thoroughly and allow the beef sauce to thicken before assembling the pie.

More Budget-Friendly Family Meal Ideas

Looking for more simple dinners that help you plan your weekly food shop? Explore our UK Family Meal Planner for practical meal-planning inspiration and family-friendly ideas.