Cut your onion very small
In a large bowl combine ALL ingredients
Knead for about 5 minutes (the more you knead the better the flavor will be later
Form the meat to a meatloaf shape
Place in the fridge for 30 minutes
Preheat your oven to 395°F
Take meat out of the fridge and transfer to the baking dish of your choice (brownie pan, meatloaf pan)
Bake for 40 minutes
Let rest 5 minutes before cutting it