Green beans won't hurt the kitties at all. My cats that eat wet food all eat veggies. They eat carrot, peas, green beans, spinach, pumpkin, squash, potato & even some rice. These things are in their high quality, natural cat food. I give them wet food that is only rice, cooking liquids, meat, & veggie. It is all natural. So, if you want to give them meat with any of those things it is ok. Just make sure it has no extra stuff (spices etc) in it. Lots of people make their own cat food for their kitties because it is better than canned food which has all kinds of preservatives & additives & fillers.
This is the food I feed mine. They like the 1st one (natural) the best. They eat dry food (Royal Canin Fit 32 & Sensible 33) with it to give them a completely balanced diet.
I feed the momma cat I am caring for
this. And she gets
this with it as well as
this. (Gimpet cat milk)
You are doing a lot for them by providing them with extra nutrition and giving them a better chance of surviving than just doing nothing. So, know that you are doing a good thing.