I am also on Post op day 5.
I agree that liquids may be a challenge, but we are not supposed to deviate from the liquid diet at this stage in the process.
An egg is more toward the pureed stage.
I know I am going to sound harsh , but the new sleeve is like an infant stomach that you have brought home from the hospital.Would you feed a 5 day old infant an egg with cheese and ketchup?
No of course not.
Liquids will not put undue pressure on that staple line.
This could result in a leak which will likely land you in the OR and then onto ICU.
Do not do this until your surgeon says it is ok.