With a sharp knife, score both pieces of steak in a diamond pattern with cuts one-inch apart. Repeat on other side. Place one piece of steak between 2 lengths of wax paper; pound lightly into a 10-inch by 6-inch rectangle. Repeat with second piece.
Blend seasoning and salt; sprinkle each steak evenly with half of mixture. Arrange 4 slices of bacon lengthwise on each. Combine remaining ingredients in a bowl; spread half of spinach mixture over each steak.
Starting at a short end, roll up each steak. Place seam-side down on an aluminum foil-lined, lightly greased broiler pan. Broil for 11 to 13 minutes, to desired doneness. Let stand for 2 to 3 minutes before slicing.