Just went hunting for Chef Mickey's breakfast openings and it appears the website is only listing times starting at 11:30 for the foreseeable future. Glitch in the system, or have things changed at CM?
I've got a breakfast reservation for Sept 7th, so unless there's been a recent change, which I very much doubt seeing how busy they seem to be, breakfast should be available.
I've just checked the website until Feb 18th 2019, which is as far ahead as you can book right now, and every single month (only checked one day each month), shows breakfast as an option.