Remove thawed dough from refrigerator and let sit until at room temperature. Cook half of the bacon in a large nonstick skillet over medium heat for 8 minutes or until crispy. Repeat with remaining bacon. Drain on paper towel-lined plate.
Heat gas grill to medium heat or light charcoal grill to medium coals.
On a lightly floured surface, divide dough into 6 pieces. Roll out 3 pieces to 6- to 7-inch circles. Brush one side of each with some oil. Place oil-side down on heated grill. Cover and grill 3 minutes. Uncover, brush with a little more oil and flip over. Spread each with a heaping tablespoon of barbecue sauce, 2 slices of bacon, crumbled, some of the diced pepper and 1/4 cup of the cheese. Cover and grill 3 more minutes. Transfer to a cutting board and tent with foil. Repeat with remaining dough, oil, sauce, bacon, diced pepper and cheese. Sprinkle pizzas with scallions before serving.