This is roughly taken from Gordan Ramsay’s recipe.
Although I added a mix of beef mince and turkey mince, which I thought worked very well, as did the suggested grating of the carrot and onion rather than finely chopping, as you might typically for this.
Very nice, super-comforting. My only change would be to leave it for another ten minutes to allow the topping to crisp, or perhaps to add a short blast under the grill before serving.
From https://www.thecoast.net.nz/life/food-recipes/gordon-ramsay-s-shepherds-pie/