Melt 1 tbs butter in medium skillet over medium heat.
In a medium bowl, whisk together eggs, water, horseradish, Worcestershire, and tabasco.
Gently pour half of the egg mixture into pre-heated skillet.
Let the eggs cook 1 to two minutes while gently pushing your spatula towards the center.
As things start to firm up, swirl the pan a bit to even out any excess liquid.
When eggs are not quite dry, sprinkle in the center half of the diced scallions, prime rib and cheese. Season with salt and pepper.
Gently fold one side of the middle.
Using your spatula and a steady hand, pour omelet onto plate, folding the other side over if desired (Im not this fancy and can just fold mine in half).