Method:
1 Preheat oven to 200°C fan-forced.
2 Combine parsley, chives and 1 tbs of oil in a bowl. Add lamb and toss to coat, season with salt and pepper.
3 Heat oil in a frying pan over high heat, cook lamb for 2-3 minutes each side for medium-rare or until cooked to your liking. Rest for 5 minutes and then thickly slice on an angle.
4 Combine cheese and cream in a bowl and season with salt and pepper.
5 Use a small pastry cutter to cut rounds from the celeriac and pumpkin. Place one round of pumpkin at the base of a ramekin, top with celeriac round and add a spoonful of cheese mixture. Repeat vegetable and cheese layers, ending with remaining cheese mixture. Bake in the oven for 8-12 minutes or until vegetables are tender.
6 For salad, combine herbs in a bowl and drizzle with oil and season with salt and pepper.
7 To serve, invert gratin onto a serving plate with sliced lamb and herb salad to the side.