I sieve nut flour together & use them as flour to make in effect a smooth sponge cake - cake-bread - but without sugar.
Approx recipe:
150 g (4 oz) mixed nut flour - ground almonds & coconut flour
1 1/2 teasp baking powder
1/3 teasp xanthan gum (optional, but strengthens the final texture)
1 teasp cinnamon (good for blood glucose control - but you may not tolerate spice)
Sieve together & add the residue
100 ml olive oil
30 g butter (melted into the oil)
3-4 eggs
beat together & add to the nut flour
beat well should be dropping consistency - add another egg if its too thick
Spread out in a 250 mm (9 inch) silicone baking dish (I use silicone so there's no sticking) or individual silicone moulds.
Bake at 170 deg C for 15-20 minutes.
Result is a sponge cake that I use instead of bread/potato/rice/pasta.
If I want sweet cake, I add sultanas and/or sweetener, cocoa powder, ad lib.
A basis for a nourishing drink is 2-3 teasp each ground almond & coconut, mix with cup soup, drinking choc, coffee, tea (fruit tea) made up with boiling water or milk. Stir before you finish as it settles. It provides about 200 kcals - as much as a cereal b'fast, without the unhealthy refined carbs.
The same sort of mix is the basis for a "porridge" which I have every day. It is much more sustaining than cereal, providing similar calories in the form of slow-digesting healthy fats & proteins.
Hope that helps. The drink & porridge are easy & nourishing meals for a carer to provide.