So I've found any easy way to come up with recipes that can be made to measure for your dog. Theres a brilliant website where you add individual ingredients, quantities etc and it does complete analysis protein, fats, carbs, vits, minerals, calories. You just tweak as you go changing quantities or ingredients until you have the levels the vet recommends.
What is really good is you can save all the recipes and add ingredients that aren't there. I had to add in green tripe cant think why it wasn't there for humans
It is American so some foods are named differently, I was looking for courgette and of course its zucchini 
I've also used it for coming up with ideas of ingredients for treat recipes. I found it about a week ago but have since found it recommended on a dog kidney group so know its tried and tested.
Have a play its good for human diets too
http://nutritiondata.self.com/" onclick="window.open(this.href);return false;
There are minimum requirements that have to be met when preparing food and speak with your vet.
Minimum per pound of body weight
Energy 10Kcal
Water 10ml
Protein 1gm
Sodium 10mg
Phosphorus 20mg
