Tender and well done don't tend to go together, unless you're slow cooking.
I'm a rare girl myself but I am willing to ignore my well-done aversion and give you some of my secrets
You need something that will break down the muscle and make it more tender. Marinating the meat in a small amount of balsamic vinegar works, as does making a marinade that includes yoghurt. A clever friend once explained to me why it works but I can't remember now. Something to do with acids maybe, but I promise it works!
I prefer to oil the meat, not the pan, but if you're going to oil the pan make sure you use the right kind of oil (peanut oil, canola, avocado, grapeseed). If you turn the heat down too low you'll stew the meat and it will be grey and tough.
To be honest I would sear the steak in the pan and then transfer to the oven to heat all the way through. If you keep it on the pan for long enough to be well done it will get dry on the outside and grey and shrink.
So I'd smoosh up some garlic, fresh herbs, olive oil, balsamic vinegar, sear the steak on med-high (make sure the pan is hot when you add the meat) on both sides, then transfer to the oven at around 180C (not fan forced). That should do it.