Gather all ingredients.

Preheat oven to 375 degrees F (190 degrees C). Line a large baking sheet with parchment paper.

Cook ground beef, onion, pepper, and garlic in a large skillet over medium until beef is browned; about 4 minutes. Drain grease.

Stir in pepperoni and olives. Remove from heat; cool slightly, about 10 minutes.

Stir the mozzarella cheese and 3/4 cup of the pizza sauce into the meat mixture.

Unroll crescent roll dough. Separate each dough sheet into 4 rectangles of two rolls each, so you have 8 rectangles total. Arrange rectangles on the prepared baking sheet in a ring so that the short sides form a 5-inch circle in the center with dough pieces overlapping slightly, like a starburst.

Carefully spoon meat mixture on the halves of the rectangles closest to the center of the ring.

Working around the circle, bring unfilled sides of dough up and over the meat mixture, tucking ends underneath the ring to secure, as needed.

Use a paring knife to cut the dough along any attached perforations at the top of the ring so that the filling shows through.

Combine melted butter, Italian seasoning, and garlic powder in a small bowl.

Brush butter mixture over the top of the crescent ring. Sprinkle with Parmesan cheese.

Bake until dough is golden brown, 15 to 17 minutes.