I installed my fix to the outdoor kitchen this weekend...
This is the bracket attached to the angle. I used a grinder and ground down the ridge on the bracket so it would sit even on the angle.

Here is how I attached it to the door frame.

Fridge back and done, Only thing I wish I would have done different is take the fridge out BEFORE putting a bunch of drinks in it, it's heavy.

It is solid, the one on the other side is kind of loose so I have a piece of angle and everything ready for when it comes loose or I just get entergtic and do it before it breaks loose.