PREHEAT OVEN TO 275 F.   MIX THE SEASONING IN A SMALL BOWL AND SET ASIDE.   SPRAY 9×13 INCH BAKING DISH OR DUTCH OVEN WITH COOKING SPRAY  

QUARTER THE ONIONS AND SET ASIDE. 

REMOVE THE CHICKEN FROM ITS PACKAGING AND DISCARD THE NECK AND/OR GIZZARDS. RUB THE OUTSIDE OF THE CHICKEN ALL OVER WITH THE AVOCADO OIL. SPRINKLE THE CHICKEN ALL OVER WITH THE SEASONING AND RUB IT IN. 

STUFF THE CHICKEN WITH ½ OF THE ONIONS AND PLACE THE OTHER ½ OF THE ONIONS ON THE BAKING DISH OR DUTCH OVEN.  PLACE THE CHICKEN ON TOP OF THE ONIONS BREAST SIDE UP. BAKE FOR 3-4 HOURS, OR UNTIL THE CHICKEN REACHES AN INTERNAL TEMPERATURE OF 165˚F.