Preheat your oven to 375°F (190°C) and lightly coat the baking dish with non-stick cooking spray.

Unroll one can of crescent rolls and spread the dough evenly in the bottom of the prepared dish, pressing seams together.

Evenly distribute the deli-sliced roast beef over the crescent roll base, ensuring full coverage.

Sprinkle the grated Swiss cheese over the beef to create a gooey layer.

In a bowl, combine dry onion soup mix, melted butter, Worcestershire sauce, and garlic powder. Drizzle this mixture over the cheese layer.

Unroll the second can of crescent rolls over the filling, pinching seams to seal.

Bake in the oven for 15-20 minutes, until the top is golden brown.

While baking, heat the beef broth in a saucepan over medium heat.

Once baked, let it cool for a few minutes before slicing into squares.