Preheat the oven to 375°F/190°C. Line a large baking sheet with parchment paper and set it aside.
Cut your gluten-free bread into 1-inch bread cubes and place them onto the baking sheet. In a small bowl, combine olive oil, minced garlic, dried herbs, rosemary, salt, and pepper. Drizzle the olive oil mixture onto the bread cubes. Toss the bread until all chunks are evenly coated.
Spread the bread cubes evenly on the sheet pan in a single layer, making sure to leave space between each so they cook evenly.
Bake for 15 minutes or until golden brown, flipping halfway through.
Remove the croutons from the oven and let them cool for about 5 minutes. Use as desired. Store them in an airtight container at room temperature for up to two weeks. Enjoy!