Place a large skillet over high heat. Sprinkle generously the bottom of the skillet with fine salt. When the skillet is hot add the steaks to sear and turn often.
In a separate skillet melt 2-3 tablespoons of butter and sauté the spinach. Season with salt and pepper.
When welted remove and place on plate and top it with the steak.
Giangi's Kitchen provides nutritional information, but these figures should be considered estimates, as a registered dietician does not calculate them.