What to eat that’s easy and high protein?

I am busy all the time and do not like cooking food. I often buy pre made meals like caesar wraps or salads or make sandwiches with food from the fridge, chicken salad, pasta salad etc. I just realized you shouldn’t eat chicken caesar wrap from the store because of the risk of listeria. What the heck do I eat on the go (especially for protein) if I can’t have any cold meat? I originally thought it was just lunch meat but apparently it is not recommended to eat any meat that is cold/pre made.