Easy Cheeseburger Casserole

Preheat oven to 350 degrees F (175 degrees C). Spray 3 round baking dishes with cooking spray.

Mix flour sour cream and egg together with just enough water to bring the mixture together into a thick spreadable consistency.

Heat a large skillet over medium-high heat. Cook and stir beef and onion in the hot skillet until beef is completely browned 5 to 7 minutes; drain and discard grease. Set beef mixture aside to cool.

Divide the dough mixture into thirds. Stretch each portion to cover the bottom of a prepared baking dish. Spread about one-third of the ground beef mixture over each pastry dough. Top each with about 2 cups shredded Cheddar cheese. Cover each with aluminum foil.

Bake in preheated oven until cheese is lightly browned and bubbling 25 to 30 minutes.