Preheat the grill or a grill pan on medium heat.
Generously season both sides of the steak with the steak seasoning and salt and pepper.
Grill the steaks on both sides to your desired temperature using a thermometer. (see below) Once cooked set on a cutting board to rest for 3 minutes.
Lay down the spring mix, top with cucumber, onion, dried cherries, apricots, and nuts.
In the meantime, whisk all of the ingredients for the dressing in a bowl. Season with salt and pepper to taste.
Toast the bread and lightly drizzle with some olive oil.
Thinly slice the steak across the grain and serve it over the salad topped with feta cheese.
Dress the salad before serving with crusty bread on the side.