Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Arrange the bread slices on the prepared baking sheet in a single layer.
Mix together the minced garlic, olive oil, salt, and black pepper in a small bowl until well combined.
Spread the garlic and oil mixture evenly over each bread slice, covering the surface completely.
Sprinkle the grated Parmesan cheese generously over the coated bread slices, pressing gently to adhere.
Bake in the preheated oven for about 12-15 minutes, or until the edges are crispy and golden brown, and the cheese is bubbling.
Remove from the oven and let cool slightly for a minute or two; the bites will be hot and crispy.
Serve the garlic Parmesan bread bites warm as a crunchy, cheesy snack or side dish.