Preheat and Prepare: Start by preheating your oven to 350°F. Line a baking sheet with parchment paper or lightly spray it with non-stick cooking spray.
Cook the Ground Beef: In a large skillet over medium heat, cook the ground beef and diced onion until the beef is fully browned. Season with salt and pepper. Once cooked, drain any excess grease.
Prepare the Dough: On a lightly floured surface, roll out the refrigerated French bread dough into a large rectangle, approximately 12×18 inches.
Add Condiments: Evenly spread the ketchup and mustard over the dough, leaving a 1/2-inch border around the edges.
Layer the Fillings: Evenly distribute the cooked ground beef over the condiments. Sprinkle the crumbled bacon and chopped pickles on top.
Add Cheese: Place the American cheese slices in a single layer over the fillings.
Roll and Seal: Carefully roll up the dough from one of the long ends to the other, sealing the edges tightly. Place the rolled dough seam side down on the prepared baking sheet.
Brush and Bake: Brush the
top of the dough with the beaten egg and sprinkle sesame seeds on top. Bake in the preheated oven for 20-25 minutes, or until the dough is golden brown.
Cool and Serve: Allow the bread to cool for at least five minutes before slicing. Serve with Thousand Island dressing for dipping.
