Inside-Out Double Cheddar Cheeseburgers (AKA The Cheesehead) - Uncle Phil's Mustard

Ingredients

• 1 pound lean ground beef
• 2 T. Worcestershire Sauce
• 2 tsp. Seasoned Salt
• 2 tsp. Black Pepper
• 2 Egg Yolks
• Brick of Cheddar Cheese (cut into 1” x 2” sticks)
• Sliced Tomato
• Sliced Onion
• 4 Large Lettuce Leaves
• Sliced Cheese of Choice