Preheat oven to 400°F (205°C), and then put together your flax egg by combining your flaxseed meal and water and stirring well, then set aside.
Cut your chicken into 7-8 strips, if not using tenders.
Put the almond flour, nut meal, za'atar, garlic, salt, and baking powder in a bowl and combine well.
Your flax egg should be done now, so stir the flax mixture until it's more egg-like in texture, about 10 seconds. Before "breading" your tenders, carefully crumple a strip of aluminum foil and then uncrumple it so that it can lay mostly flat on your baking sheet.
Dredge your tenders in the flax egg, and then coat well in the nut meal mixture.
Lay your tenders on the crumpled aluminum foil or spray a baking sheet with avocado oil and lay your tenders directly on the sheet.
Turn on your convection function, and bake for 12 minutes, flipping them halfway through to ensure even baking. Once you tenders are done, serve them immediately (any 'sweating' from the coating will disappear in about 10 minutes— if they last that long!).