Recipe find help

Delldgm

Hi everyone, ok so looking for a protein bar recipe that I can make for my teen son. My problem is there is some very specific requirements that seem to be blocking me at every turn. Can anyone help with the following:

NO nuts
NO proteins powder but needs to be high in protein
Low carb
Low fructose
Preferably gluten free but not a must

Easily accessible ingredients from a country town supermarket

I need a simple high protein low carb breakfast for him that is not bread but he won't eat eggs, fish, or chicken, and fruit for breakfast is out due to fructose intolerance, help!