Preheat the oven to 325°F. Line a baking tray with parchment paper.
In a small saucepan over medium-low heat, warm the olive oil with the garlic clove until the oil is warm and the garlic is just giving off its fragrance, about 2 minutes. Remove from heat and let the garlic infuse the oil while you slice the bagels.
Slice the bagels into thin rounds, about 1/8 inch thick. Arrange them in a single layer on the prepared baking sheet.
Lightly brush the bagel rounds with the garlic infused olive oil. Sprinkle with Parmesan cheese.
Bake in the oven for about 12-15 minutes, or until golden brown.
Enjoy plain or with your favorite spreadable cheese.