Get one of those Turks head squashes, they come in a variety of sizes, slice the top off , scoop the inside out and then fill with a stuffing of your choice, nut roast, add cranburies to it, vegetarian haggis, herby apricot stuffing, anything you fancy, then put the lid back on and bake in the oven for 45 minutes - one hour.
Present it on a plate surrounded with greenery, it should look fabulous. You then take the lid off to scoop out the roast or stuffing mix to serve.