Bill, This is hard for me to answer because I have never done pork and sweet potatoes together.I have roasted pork and made candied sweet potatoes and cooked them in the oven at the same time, but not as as one dish. Seems to me that any of these spices would be over powering except the parsley as a leaf garnish around the plate or platter. Might be a nice change, let me know how you fix it.