Brush the remaining beaten egg over the tops of the mince pies. Using a knife, make a small steam hole in the top of each pie. Transfer the mince pies to the oven and bake Servings: 12-15. Hairy Bikers low calorie lean lamb hotpot delicious family food thats diet food too, who could ask for more! Lean Lamb Hotpot - Get this recipe and loads of other mint tips with our Diet Club! The official Hairy Bikers website. Recipes, show news and all official updates from Dave and Si.3.6/5(4.7K).