In a skillet over medium heat, cook the ground beef until browned. Drain excess fat.

Add diced onion, garlic powder, salt, and pepper to the skillet. Cook until the onion is translucent.

Stir in ketchup, mustard, pickles, and cheddar cheese. Mix until cheese is melted and everything is well combined.

Preheat the oven to 375?F (190?C).

Roll out the pizza dough on a floured surface into a rectangle.

Spread the beef mixture evenly over the dough, leaving a border around the edges.

Roll the dough tightly from one end to the other, sealing the edges.

Place the rolled dough seam-side down on a baking sheet.

Brush the top with beaten egg and sprinkle with sesame seeds if desired.

Bake in the preheated oven for 25-30 minutes or until golden brown.

Allow to cool for a few minutes before slicing and serving.