I do it like this...
I cheat and buy already-frozen patties, then thaw them and form each one into four little ones, which I fr lightly and then put into jars. I put ten into each pint-sized jar (half a pound), and then I put in a heaping teaspoon of dry onion soup mix and top the jar with water and can them (90 minutes at ten pounds).
The patties hold together very well and taste delicious. I usually use the fat from the jar to make a roux with flour and then add the liquid from the jar along with either water, canned milk, or red wine and then serve them with this gravy.
(also good on cheeseburger pizza with pickles and ketchup)