Preheat oven to 160°C and grease/line a mini loaf pan.
Put the nuts in a blender of food processor and just pulse a couple of times. You could also roughly chop the nuts with a knife.
Mash the banana.
Add all ingredients and knead it into a dough.
Put the dough into the loaf pan and bake ca. 40 minutes.
*I used pecans, walnuts, hazelnuts and almonds.
**Use certified gluten free if necessary.
***Any other oil works fine as well.
****Psyllium husk is optional, but it does give the bread a more bread like texture and keeps everything together.