Don't put the can in the microwave.
Indeed not!
As they allegedly used to say, Don't try this at home, folks!
The beans won't be, even if green. The metal can and could - indeed would.
It absorbs the microwave (ultra-short radio) energy and converts it into electrical eddy currents within the metal. And several hundred W into a small amount of thin sheet-metal of low resistance...
Yes, I have given my dog green beans.
Microwave
a salad
Absolutely
Lima beans. You can buy them canned or frozen.
yup
no,you should not give that to an iguana
Yes, it fine to can green beans in beef or chicken bouillon.
Beans and spam and stuff like that... Many many foods are canned, as it is a method to preserve and ship a food. Everything from fruits (ex: canned peaches) and vegetables (canned tomatoes), to meats (canned ham) and seafood (canned tuna fish); even dairy (canned milk).
Green beans can be safely canned in the home using a pressure canner, as the beans are low in acid. The raw or hot packed method can be used. Experts say that if done properly, canned green beans can be stored for up to five years if kept in a cool, dry location. Frozen green beans on the other hand, should be used within a year.
If they are part of a controlled diet.
If you have to ask, don't eat it.