I would reccomend cooking in a little bit of water or broth instead of oil. That is how I cook all the time and it works great. It then sort of steams the stir fry or whatever you are cooking instead of frying it. You can do it at a high heat and it really feels like you are cooking/sauteing the same way you would with high heat oil (which any oil will have some reaction to heat) Also if you are a big fan of olive oil...consider putting it on after you cook the food. It does give great flavor and the illusion that it was cooked in it

Hope that helps.