01 - Set oven to 400°F (200°C) and prepare a baking sheet lined with parchment paper.
02 - Place split bagel halves, cut sides facing upward, onto the lined baking sheet.
03 - Spread 2 tablespoons Alfredo sauce evenly over each bagel half.
04 - Distribute diced chicken breast and chopped bacon over the sauced bagel halves.
05 - Cover toppings with a mixture of shredded mozzarella and grated Parmesan cheese.
06 - Sprinkle each bagel half with dried Italian herbs and ground black pepper.
07 - Transfer baking sheet to oven and bake 12–15 minutes, until cheese is melted and golden.
08 - Remove from oven, garnish with fresh parsley if desired, and serve hot.