On a lightly floured surface, roll out the French bread dough into a rectangle about 12×18 inches.
Step 4: Add Condiments
Spread ketchup and mustard evenly over the dough, leaving a ½-inch border around the edges.
Step 5: Layer Fillings
Top the dough with cooked beef, crumbled bacon, and chopped pickles.
Step 6: Add Cheese
Place American cheese slices evenly over the fillings.
Step 7: Roll and Seal
Roll the dough from one long side to the other, sealing the edges tightly. Place seam-side down on the prepared baking sheet.
Step 8: Brush and Bake
Brush the top with beaten egg and sprinkle with sesame seeds. Bake 20–25 minutes, until golden brown.
Step 9: Cool and Serve
Let the bread cool at least 5 minutes before slicing. Serve with Thousand Island dressing for dipping.
