i dont know about provincial nominee program in Ontario but you can check to see if you qualify for that.
in January they will revise their list for skilled trades program,if the include cooks you can apply in that program.
you can apply for federal skilled worker category if you have ARRANGED EMPLOYMENT from your employer and meet the program criteria.
lastly you can consider moving to another province maybe,where cooks are eligible for nominee program such as Manitoba,saskatchewan,im not sure but i have heared from others that is easy to get a nomination certificate there.