Mutton, Celeriac and Sweet Potato Pie

This dish is my own take on a classic Shepherd’s Pie, using some slightly more interesting vegetables for the mash and mutton instead of lamb for the mince. Mutton is a fantastic source of protein and essential micronutrients, it tastes just as good as lamb - just slightly less sweet - and in my opinion, it is a more ethical and sustainable meat to choose over lamb. The recipe is gluten-free, and I made mine cow’s-milk-dairy-free, but it can readily be made without any dairy.