Dinner

Lamb Shepherd's Pie with a Sweet Potato Top for Four

Name: Lamb Shepherd's Pie with a Sweet Potato Top for Four
Prep time: 35 min
Total time: 35 min
Yield: 4 servings
Ingredients: 500 g Lamb mince, lean; 700 g Sweet potato; 200 g Onion; 200 g Carrot; 150 g Frozen peas; 300 g Beef stock; 2 tbsp (30 g) Tomato purée; 2 tsp, about 10 g Worcestershire sauce; 1 tbsp, about 11 g Olive oil; A few sprigs Fresh thyme; To taste Salt

Lamb mince, carrot and peas in gravy under a sweet potato mash, baked until the top browns. 31 g of protein for 492 kcal a serving.

Calories: 492kcal
Protein: 31g
Fat: 19g
Carbs: 49g

Per serving, makes 4. 35 minutes of work, then thirty minutes in the oven. Published 8 September 2026.

Allergens

Gluten
Fish
Celery

Nearly every stock cube and pot lists celery.
The original is made with anchovies and barley malt vinegar. Vegan versions carry neither.

Flags follow UK labelling rules and come from the ingredients as listed, not from any particular brand. Check the packet before cooking for somebody with an allergy.

Ingredients

Lamb mince, lean500 g
Weighed raw.
Sweet potato700 g
Peeled weight. Three or four medium. Raw, peeled weight.
Onion200 g
Carrot200 g
Frozen peas150 g
Beef stock300 g
Made up from a cube or a pot.
Tomato purée2 tbsp (30 g)
Worcestershire sauce2 tsp, about 10 g
Olive oil1 tbsp, about 11 g
Fresh thymeA few sprigs
SaltTo taste

Method

Boil the sweet potato in chunks for fifteen minutes until soft. Drain well, mash with salt and pepper and no butter.
Fry the mince in a dry pan until browned, then tip it into a sieve to drain the fat. Soften the chopped onion and carrot in the oil in the same pan for ten minutes.
Return the mince with the tomato purée, Worcestershire sauce, thyme and stock. Simmer for fifteen minutes until thick, then stir in the peas.
Spread the filling in a dish, top with the mash and rough up the surface with a fork. Bake at 200°C for thirty minutes until the top browns at the edges.

Worth knowing

Makes four. Draining the fat off the mince after browning is worth about 50 kcal a serving with lamb, which renders a lot even when sold as lean.
Sweet potato mash is about the same calories as potato mash by weight, but needs no butter to be smooth, which is where the saving is.

Other dinner recipes that share ingredients with this one, or every dinner between 450 and 600 calories a serving.

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Macros are calculated from the weights listed above using standard food composition values, and will shift with your own brands and measuring. Weigh what you can. This is a recipe, not dietary advice. The full health disclaimer is below.