That's not food aggression - that's just piggishness. And really easy to solve: put a leash on the pig until everyone is done. If Jazzie moves towards the other dogs' food - simply give the leash a tug and say "no".
I've got food aggression with my old/blind/deaf/demented Cattle Dog: if either of the other dogs walks near him while eating, or near "perceived" food, or near the groceries in the back of the car - he will bite without warning. One day I saw the bite coming and stuck my leg up to block Jimmy from getting bit - and he got me instead. I still have bruise....