If using classic crust: Heat oven to 425°F. Spray or grease 12-inch pizza pan. Unroll dough on pan. Starting at center, press out dough to edge of pan. If using thin crust: Heat oven to 400°F. Spray or grease 15x10-inch or larger dark or nonstick cookie sheet. Unroll dough on cookie sheet. Starting at center, press dough into 15x10-inch rectangle.
Meanwhile, in 8-inch skillet, cook beef over medium-high heat, stirring frequently, until thoroughly cooked; drain. Spread pasta sauce evenly over dough. Top with beef, onion and cheese.
Bake classic crust 12 to 18 minutes, bake thin crust 8 to 12 minutes, or until edges are golden brown and cheese is bubbly. Top pizza with pickle slices. Cut into 4 servings.