Preheat oven to 400 degrees F. In large skillet, cook beef and onion over medium-high heat 8 to 10 minutes or until meat is browned and cooked through, stirring occasionally and breaking up meat with back of spoon. Stir in salt and pepper.
Meanwhile, spray large pizza pan with cooking spray. Toss and stretch pizza dough into 14-inch circle and place on prepared pan. Transfer to oven and bake 10 minutes.
Remove crust from oven and spread evenly with mayonnaise, all the way to the edges of the crust. Spoon beef mixture over crust, leaving outer 1/2-inch of crust bare. Sprinkle cheese over meat. Sprinkle sesame seeds onto outer edge of crust.
Return pizza to oven and bake for an additional 8 to 10 minutes or until cheese is melted and bubbly.
Remove pizza from the oven; top with lettuce, tomato and pickles. Drizzle with ketchup and mustard. Cut and serve immediately.
This website provides estimated nutrition information as a courtesy only. You should calculate the nutritional information with the actual ingredients used in your recipe using your preferred nutrition calculator.