Cooked meat, Grilled neck tail and Cooked lox meat would be the least amount of effort and provide more then enough hp and stam to finish the game if you can manage a smaller hp/stam pool.

I do agree with Ptolemy with the sausages if you do not mind the thistle gathering. If you get lucky and find turnip early they are well worth the little time it takes to plant and farm them for a nice buff. I am suggesting the turnip more because farming lox tend to be more of a mid late game thing not that you can not kill them sooner it is just more risky same goes for serpents.

best of luck to you.