"How to Become Giga Chad (while working at McDonalds)?" (Patreon)

It can be done and it has been done.

Source: https://www.dailymail.co.uk/femail/article-3965772/I-don-t-eat-eggs-meat-cheese-Mom-lost-130lbs-cutting-diet-three-ingredients-indulges-eight-McDonald-s-quarter-pounders-DAY.html

Double Cheeseburgers. Bunless.
McDoubles. Bunless.
Stay away from breads and fried stuff.

If you can eat here for free or cheap it's an EXCELLENT source of protein but you do need to be careful with the sodium intake. I basically do this exact same diet but with Chipotle.