Take a look at the Dorwest Herbs site - I use Keeper's Mix, which provides vitamins and minerals - but I'm feeding raw food, not cooked, but it's not a product that's recommended solely for raw feeders. Don't use Brewer's Yeast or any yeast products as their guts don't like it apparently - can cause a lot of bloating as it "rises" in their tums.
In the raw food books I read, one of the authors recommended that the veg should be varied/mixed to achieve a range of colours eaten and a balance between "below ground veg" - like carrots, potatoes, - and "above ground veg" - broccoli, peppers, tomatoes - as a rule of thumb to get the balance right.
One thing I learned which really shocked me, is that dogs have little nutritional need for carbohydrates, unlike humans. They'd only take in quite small quantities in the wild - e.g. the contents of a rabbit's stomach. Their body chemistry, digestion & metabolism are all designed to take their energy requirements almost exclusively from protein. This is why many "raw feeders" advise against using rice or cereals in any quantity or at all, as they wouldn't feature in/be required for a balanced diet. They're used in processed foods because they are cheap bulk.
Might also be worth asking your butcher for some raw bones each week - beef or lamb - so your dog can eat it raw (don't give cooked bones - they splinter) and get the micro-nutrients from the bones.
Good luck.
Denise