Ugh with all those sugar alcohols, he's going to have one hell of an upset stomach, and I'm guessing the runs. I'd honestly rather eat a granola bar made out of gluten free oats, raisins and nuts than shove down all those -tol's, not to mention baking those nut meals are a recipe for lots of oxidized PUFA's and a caloric disaster. I understand people not wanting to eat carbohydrate, but replacing carbohydrate with 4 times the amount of calories and 10 times the amount of omega 6 is not a good answer IMO. He's better off eating oatmeal.
Not touching meat for breakfast is wild since bacon, sausage and eggs are breakfast staples. Maybe consider making him these coconut flour zucchini muffins I make on occasion:
They're high in protein, high in fiber, low in carbs, low GI, very low in PUFA's and they taste great. They go great with a bowl of cottage cheese with cinnamon and chocolate syrup (I reduce unsweetened cocoa powder in water and add stevia to make a syrup and you'd never know it isn't Hershey's).
If that doesn't work, maybe try making Primal-style bread. The less flax and almond meal you use the better. Coconut flour is best IMO, but this tastes great, too. It would probably be even better with grated zucchini.
This bread toasts up very well and would likely be awesome with creamed chipped beef.
Don't put your trust in anyone on this forum, including me. You are the key to your own success.