On my mid-con, they had the usual meatball pasta and cheese plus the hamburger for sale. The guy next to me bought a hamburger. The FA gave it to him. The packaging looked good.
He opened it up because one side of the bun was burned. The meat was light brownish. It was not too appealing.
The probably 5 minutes later when the guy was 1/4 the way through, another FA came and gave him a plastic box with lattice, pickle, tomato, ketchup and mayo.
It seems this is a new option? I did not have it on my flight about 10 days ago. I know it was only 1/2 yesterday but sort of bad that the first FA didn't even know what to give to the passenger.