Lentil and carrot shepherd's skillet

A savoury lentil skillet finished with buttery potato mash.

This recipe makes 4 servings and takes about 15 minutes to prepare plus 30 minutes to cook. Metric and imperial quantities are alternate measurements, so use one system rather than adding both. If you change the yield, keep the pan size and thickness of the food in mind: a crowded pan steams food and a deep baking dish can extend the cooking time.

Equipment

Set out large ovenproof frying pan, potato masher, small saucepan. A wide pan gives moisture somewhere to evaporate; for an oven dish, leave space between pieces so heat can circulate. Use separate board and knife surfaces for raw protein and foods that will be eaten without further cooking.

Ingredients

You will need: floury potatoes, cubed: 700 g (1½ lb); milk: 120 ml (½ cup); butter: 30 g (2 tbsp); olive oil: 15 ml (1 tbsp); carrots, diced: 250 g (9 oz); onion, diced: 150 g (5 oz); tomato purée: 30 g (2 tbsp); cooked green lentils: 500 g (18 oz); frozen peas: 150 g (5 oz); rosemary, finely chopped: 5 g (1 tbsp). Gather the ingredients before heating the pan so the aromatics do not burn while a measurement is being found.

• floury potatoes, cubed — 700 g / 1½ lb
• milk — 120 ml / ½ cup
• butter — 30 g / 2 tbsp
• olive oil — 15 ml / 1 tbsp
• carrots, diced — 250 g / 9 oz
• onion, diced — 150 g / 5 oz
• tomato purée — 30 g / 2 tbsp
• cooked green lentils — 500 g / 18 oz
• frozen peas — 150 g / 5 oz
• rosemary, finely chopped — 5 g / 1 tbsp

Method

Read the full method once, then prepare the ingredients in the order listed. Keep raw and ready-to-eat ingredients separate, and wash hands and equipment after raw-protein contact.

Step 1

Boil potatoes for 15 minutes until a knife slides through; drain, mash with milk and butter, and cover.

Step 2

Cook carrots and onion in olive oil for 8 minutes until softened.

Step 3

Stir in tomato purée for one minute, then add green lentils, frozen peas and rosemary. Cook for 5 minutes until peas are hot and the lentils are steaming.

Step 4

Spoon potato mash over the lentil mixture, rough up the surface with a fork, and cook under a hot grill for 3 to 4 minutes until lightly browned.

Cooking and safety check

Heat the lentil filling until steaming before topping, and take care with the hot grill pan. A time estimate and a browned surface do not prove that the centre is cooked. Use a suitable food thermometer where the ingredient or local guidance requires one, and follow the package or official instructions for the specific food.

Substitutions that respect the dish

A substitution should preserve the recipe’s job, not merely its colour. Use sweet potatoes for potatoes; their mash will be softer. Use olive-oil spread and unsweetened oat milk for a dairy-free topping; check oat products for gluten. Use canned lentils, drained, in place of cooked green lentils.

• Use sweet potatoes for potatoes; their mash will be softer.
• Use olive-oil spread and unsweetened oat milk for a dairy-free topping; check oat products for gluten.
• Use canned lentils, drained, in place of cooked green lentils.

Allergen notes

This recipe contains or may contain milk. Check every packaged ingredient because formulations and cross-contact warnings vary.

Common mistakes and how to correct them

Use one troubleshooting change at a time. If the centre is undercooked, return it to the appropriate heat and check again rather than relying on the outside colour. If the pan is dry, add liquid gradually; if it is watery, reduce uncovered. Texture may also reflect crowded equipment, a different ingredient size, or a changed batch quantity.

• Steam dry drained potatoes briefly so the mash is not wet.
• Dice carrots small enough to soften in the stated time.
• Spread mash gently to avoid mixing it into the filling.

Leftovers and storage

Refrigerate covered leftovers for up to three days. Reheat in an oven at 180°C/355°F until the centre is steaming.

Serving ideas

These sides and finishes suit lentil and carrot shepherd's skillet without changing the recipe itself.

• Steamed cabbage
• Sharp green salad
• Brown sauce

Frequently asked questions

Can I make it ahead?

Prepare through topping, chill, then grill after reheating.

Why is the topping sinking?

Make sure the filling is thick and the mash is not overworked.

Related recipes and tools

Browse the related recipes for a different appliance, pace, or ingredient pairing. Use the serving scaler only after checking the stated yield, and use the storage guide before deciding whether to save a portion. Related links help with the next decision; they do not make this recipe suitable for every diet or kitchen.