Why are you giving this pup all these different foods? If you are worried about pancreatitis, my suggestion is to put him on a good low fat RX food......UNLESS this is a vet nutritionist formulated diet with supplements.
Here are some links about home cooking for dogs. There is no way people should just wing it....especially with a dog with health concerns.
www.petdiets.com This website has a very thorough library and if you don't see an answer to a question you have, you can email it to the vet nutritionist and she will answer.
www.balanceit.com This website has the supplements I have used in the past when I home cooked for a couple of my pups...it also has a diet formulator....BUT if it is a dog with medical issues you have to give the info of your vet and they will contact him/her for verification...then you can pick your diet once they have your vet's approval.