Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper for easy cleanup.
Using a serrated knife, carefully cut each bagel in half horizontally to create small, round bases.
Spread about a tablespoon of tomato sauce evenly over each bagel half, covering the surface with a gentle, spreading motion.
Sprinkle shredded cheese generously over the sauce-topped bagels, ensuring full coverage for gooey, melting cheese.
If desired, add toppings like pepperoni slices, chopped vegetables, or herbs on top of the cheese for added flavor and visual appeal.
Place the prepared bagel halves on the parchment-lined baking sheet, spacing them slightly apart to allow even baking.
Bake in the preheated oven for about 8-10 minutes, or until the cheese is bubbly and starting to brown lightly around the edges.
Remove the baking sheet from the oven and let the mini pizza bagels cool for a minute or two until they are cool enough to handle.
Serve the mini pizza bagels warm, with a crispy crust and melted, cheesy top, perfect for snacking or a quick meal.