Preheat oven to 350 degrees F. Line a baking sheet with aluminum foil and set aside.
Lay steak on a cutting board, spread olive oil over the surface and sprinkle evenly with seasoned salt. Flip meat over.
Spread cream cheese evenly over the surface of the steak, and arrange spinach leaves over the cheese.
Carefully roll steak, and secure seam with toothpicks to hold your spiral together.
Place rolled steak seam-side up on the prepared baking sheet, and bake until internal temperature reaches at least 145 degrees F, approximately 35 minutes. (A probe thermometer is highly recommended for this recipe.)
Remove from oven, and allow to stand for 5-10 minutes. Remove toothpicks, and slice into 1″-thick slices.