Brush the tops and bottoms crusts of each ciabatta roll with the olive oil.
Place the ciabatta in a work area cut sides up. Spread 2 Tbsp. of basil marinara over the bottom of each roll. Assemble each sandwich as follows: oregano, red pepper flakes, 2 basil leaves, 4 banana pepper slices, 2 mozzarella slices, 2 provolone slices, 5 pepperoni slices, 2 turkey bacon strips.
Place the crown of each ciabatta over each sandwich.
Place onto a preheated panini grill; grill until golden brown and cheese starts to melt.
OR heat a skillet over a medium heat then place the sandwich into the pan; sauté for approximately 3–4 minutes (the bottom should be a golden brown and cheese should start to melt). Turn the sandwich over and continue to cook for an additional 3 minutes.