The first thing I ever cooked was a Steak Canadiene circa 1974 when I was 13 and Kung Fu mad I reckon. I've never seen them since.
They were wafer thin sliced circles of frozen beef that you fried for a nano-second and slapped on a bun.
It doesn't really qualify as cooking but I did use a frying pan and turn the electric ring on!
What about you?