Before you get to the roasting stage, you have three options for fabricating a turducken, ranging from complex to simple. To create one from scratch, buy the fresh turkey, duck, and chicken, and debone each. Make up to three different stuffings, each paired to one of the types of poultry, or use one stuffing for all of the parts. To create one with assistance, enlist the help of your local butcher to debone each of the birds so all you have to do is stuff, truss, and roast. Or, easiest of all, buy a ready-made turducken that simply needs to be roasted and served.
For serving, slice the turducken across the roast from front to back so that each slice contains a portion of turkey, duck, chicken, and the stuffings.