To Broil Steak: Preheat broiler. Line a baking pan with foil. Add steak. Drizzle with Worcestershire sauce and sprinkle with a little garlic powder, seasoning salt, or salt and black pepper. Place under broiler on top rack. Broil for 5 minutes. Remove from over, turn over and add more Worcestershire sauce, garlic powder, seasoning salt or salt, and black pepper. Place back in oven and broil 4-5 minutes for medium-rare. Cook longer for more well done. Remove from oven and transfer to cutting board. Let rest for 5 minutes before slicing into bite-size pieces.
To Cook Steak on Cooktop: Coat a small nonstick pan with cooking spray. Add steak and drizzle with Worcestershire sauce. Sprinkle with a little garlic powder, seasoning salt or salt and black pepper. Brown steak on both sides for about 5 minutes for medium-rare. Cook a little longer, if desired. Remove from pan and transfer to cutting board. Let rest for 5 minutes before slicing into bite-size pieces.
To Make Croutons: Toast bread. Spread with ½ teaspoon light butter and sprinkle with a little garlic powder. Cut into bite-size pieces. Set aside.
To Make Salad: Add lettuce and tomatoes to a large bowl. Toss with Caesar dressing. Divide among 2 dinner-size plates. Top each with ½ of steak pieces. Top each with ½ croutons. Sprinkle each with 1½ teaspoon of Parmesan cheese.
Serve at once.