I don't really have a "signature" dish but a number of dishes that lots of folks enjoy.
One of the dishes I make that is well received by all is something I learned to cook from a Russian friend. It's a beef-filled crepe dish called nalistniki. My family loves it and I'm hard pressed to make enough every time fix it.
It amounts to a seasoned ground beef-filled crepe that is wrapped and baked, then served with a thin beef sauce.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!