Sautéed sweet potatoes with roasted loin of lamb and salads

http://www.bbc.co.uk/food/recipes/sauteedsweetpotatowi_92341

Recreated by Helen

Ingredients
For the lamb
400 g lamb loin, pieces
salt and freshly ground black pepper
50 g butter
1 Tbsp olive oil
2 star anise
2 sprigs fresh thyme
110 ml beef stock

For the sautéed sweet potatoes

1 medium sweet potatoes, cut to 2 cm height in size
50 g butter
2 Tbsp olive oil
½ onion, very finely chopped
2 star anise

300 g red grapes
A packet of fresh salad mix

Method
For the lamb loin, preheat the oven to 220C. Season the lamb loin all over with salt and freshly ground black pepper, to taste. Heat the butter and oil in grill frying pan over a medium heat. Add the seasoned lamb and fry for 6-8 minutes, turning regularly, until browned on all sides.

Add the star anise and thyme, then transfer the lamb loin to baking tray and put in oven…