Seeds are good, especially punkin seed, sunflower seed, linseed, sesame seed etc.
Cashews i tend to avoid, I have RAW cashews very occasionally. I dont know the facts though. Pistachios skin attract high levels of mould.If u can find them raw and skinned then this should be ok.
As for grains buckwheat does not feed canida (gluten free), millet is good (and alkalising) as is quinoa.