I find this stuff so frustrating too. My son loves nuts and doesn't eat any grains so I'm left with coconut flour to make him things for school.

Mini-muffins and then everything else you can cook in a mini-muffin pan- quiches and meatloaf are good.

Anything eggs- boiled eggs, pikelets, fish cakes (I basically make these pikelet things with a can of salmon & 2 eggs).

Homemade crackers with seeds. Salted roasted seeds. All seed things are a good way to go nut free too- sunflower seeds make a good "nut" butter.