For Warm Ginger Steak Salad, you’ll want a well-seared, deep golden crust on your steak. A ten-inch cast iron skillet is ideal for searing because it’s a great heat conductor, and ten inches is just the right size for one steak; any more room and the oil coating the pan would start to smoke and burn. If you don’t have a cast iron skillet, use your heaviest ten-inch skillet — one with straight sides is best.