I am not sure if this has just made it to Japan or not, but the Outback Steakhouse Japan Bloomin' Burger is being advertised. You may have seen news from the US, where this burger was singled out as one of the indulgent burgers not to be eaten regularly if you are on a diet. A large beef patty topped with bloomin' onion slices with a side of fries come to 1,574 kcal and 100 grams of fat. Looks good though. アウトバックステーキハウス
http://www.outbacksteakhouse.co.jp/
Photo is a web capture for explanatory purposes, copyright belongs to the company.