Why not heated Olive oil? I use olive oil for cooking - not a good idea?
Olive oil has a very low flash point - does not take to heat at all. Grapeseed oil or coconut oil is better for cooking.
I used to cook with it too. I love olive oil. But it becomes toxic when heated. So save your really good olive oils for salads, or for drizzling over foods AFTER cooking is done.
For heating up, the best oil is coconut. It can take the heat. Get extra-virgin.