Should I report a subway for terrible hygiene practices and bad management?

I worked in a subway for a week and my training shifts were very great at first I enjoyed those very much despite how disgusting the food served was, my manager at my other job told me to report them and I didn’t know if I should.
The way this manager tells us how to serve the meat is if the date was expired on the tray, he told us to just change the tray and add a new date but serve the old meat and vegetables, serve old bread and cookies until it’s all finished, and the sauces never get cleaned and the bottom half of sauces never gets used up so it just kept getting topped up over very old sauce
The sides he told us to just see if there’s visable mould and if not to serve it but if the dates off and there’s no mould visable then it’s okay to serve

The dishes were full dirty from last night that I had to clean (which was the managers dishes he left) and it was all messy and there was so much to do in the morning.
As for management it was quite terrible, the first time on the shift on my own (which was after 16 hours of training which is fine but I’m a little uncomfortable) my manager came very late to drop off the keys then he kept talking so much about other things that he left me to open the store and everything was undone, anyway sure that’s fine so I tried to do everything as fast as I can I guess that was very stressful and so much to do but I guess I tried. I also told him I can’t work most Fridays and Saturdays unless stated otherwise and he still put me on which I ended up doing so that’s my fault so whatever .
So onto preparing the vegetables, half of them were meant to be done by hand because the thing that chops them was broken.
And by the lunch rush, the managers wife was meant to be working with me but apparently she decided to come by 2 when the lunch rush was over and was quite a bitch and just kept calling on the phone and FaceTiming . She saw me crying and panicked by the end of the lunch rush and just didn’t do anything helpful. I was scheduled to work by 2 when I had to travel to another job, but because of how much hold back I had from everything I did not finish everything so I stayed 40 minutes longer until I kind of just gave up mid and quit (which I regret very much now… I should’ve just shut up and finished it)
..rough day :(