Cook ground beef with onions, salt, and pepper until browned. Drain excess grease and let it cool slightly.
Spread out crescent roll dough or pizza dough, creating an even layer.
Spread Big Mac sauce over the dough, then evenly distribute the beef mixture, followed by shredded cheddar or American cheese and diced pickles.
Tightly roll the dough into a log, then slice it into 1-inch pinwheels.
Arrange the pinwheels on a baking sheet, brush with butter, and sprinkle sesame seeds on top. Bake at 375°F (190°C) for 12-15 minutes until golden brown.
Let them cool slightly, then serve with extra Big Mac sauce for dipping.