Thaw filet mignons in refrigerator overnight; remove from refrigerator, pat dry, rub each with 1 oz. grapeseed oil, and generously season with salt and pepper all over; let come to room temperature for about 20 to 25 minutes.
Turn oven to high broil setting and preheat oven for about 10 minutes.
Place filet mignons on wire rack-lined sheet pan and place on top rack about 3” from broiler.
Broil for 6 to 8 minutes on one side; check temperature and browning at the 6-minute mark with tongs and broil for about another 6 minutes for medium-rare, taking out of the oven at 5 degrees below the desired doneness. *If steak is browning too fast and not cooked all the way through, slightly lower the rack. For more about steak doneness, check out the Omaha Steaks Doneness Guide.
Slice four 1/2”-discs of anchovy butter and top each steak. Lightly tent filets with aluminum foil and rest for 5 minutes.
Place creamed corn on the base of plate and spread out, top with spinach, and place broiled filet on top of spinach. Enjoy!