i just core them and toss them in freezer bags. take out and thaw and the skin comes right off. good for chili and also can be run through a juicer easy to get rid of the seeds. canning is good too but kind of a PITA.
We've done that a lot. However, right now we only have room for 1 elk and the season opens soon. I'd hate to have to throw out a bunch of tomatoes to get an elk squeezed in.