I think miso soup is fine, I believe Mark wrote a "definitive guide to soy" a long time ago and miso was on the "go ahead" category. Do a search for that to be sure though.
I also have avocado oil but not sure how to use it, got it for free at work. I know some people have used it to make mayo though. The bottle I have is refined and is meant to be used as a cooking oil for high-heat.
Lastly, you can make your own potato chips pretty easily, just slice potatoes real thin, coat in your favorite good oil (or animal fat) and bake and or/fry...
I make lard "hash browns" damn near every weekend for breakfast, with bacon bits and eggs it's fucking delicious.