01 -
Preheat oven to 375°F (190°C). Lightly grease an 8x8 inch baking dish with cooking spray.
02 -
Unroll crescent dough and press firmly into the bottom and slightly up the sides of the baking dish, sealing gaps by pinching dough edges together. Reserve a small amount of dough to patch any holes if necessary.
03 -
Arrange corned beef slices in a slightly overlapping pattern over the dough. Spread thoroughly drained sauerkraut evenly on top of the beef. Sprinkle shredded Swiss cheese over the sauerkraut layer. Drizzle Thousand Island dressing in zigzags across the cheese, optionally spreading gently with a spoon.
04 -
Bake in the preheated oven for 22 to 25 minutes until the crescent dough is golden brown and the cheese is bubbly.
05 -
Remove from oven and let rest for 5 minutes to allow cheese to set before slicing and serving.