no yeast/sugar is a killer.
I had to do that, plus no dairy when getting rid of a candida infection. must say, I dont get the cooked cheese thing. does he eat goats milk.
wine, bread, any yeast baking including pizza, raisins, mushrooms, unpeeled grapes, plums, blue cheese are all out. As are anything flavoured with malt, which includes most breakfast cereal.
better ask him what he normally eats for breakfast, eg if he has cereal with soya milk, thats easy enough to buy.
For her; soda bread with whole earth sugar free jam/marmelade. Puffed wheat, unsweetened muesli, kallo puffed rice or other malt free cereal. Porridge with unsweetened stewed fruit. Rice cakes with spreads. Cracker biscuits if they are malt free. Pancakes with stewed fruit.
your local supermarket "free from" section (tesco or sainsburys ) should be helpful.
For cooked meals, anything fairly simple and unprocessed should be ok. chilli con carne, baked potatoes, risotto (not mushroom), pasta, shepherds pie (no milk/butter in the mash) or vegetable pie...