depends on how you cook. do you saute, steam, boil?
if you saute, make sure you use something like canola oil. 1 Tbs, heat, and make sure it's spread evenly on the bottom of the pan. if the oil starts to splatter and dance, your heat is too high. while olive oil is great, it doesn't heat high enough and the "good stuff" breaks down in the heat anyway. i would watch the food carefully until you're comfortable enough to turn away for a minute...get a sense for how long you can leave the food on before it starts to char. I stir fry a lot on a gas range, and i don't have scorching problems unless i step away for quite some time. i usually add a bit of water so steam helps cook veggies.
meat is a completely different issue. i stir fry meat...so i don't know how to help you otherwise. otherwise i bake.
for stuff like pasta sauces, soups, etc., i don't think your cooking has to be any different.
stainless steel is pretty easy to take care of. i don't think you need to do anything special to take care of it. hand wash and dry.