Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.
Cut the cauliflower into florets and pulse in a food processor until it resembles rice. Alternatively, grate the cauliflower using a box grater.
Steam or microwave the cauliflower rice until tender, about 5-7 minutes. Let it cool slightly.
Squeeze out as much excess moisture from the cauliflower as possible using a clean kitchen towel or cheesecloth.
In a bowl, combine the squeezed cauliflower, eggs, mozzarella cheese, garlic powder, salt, and pepper. Mix well.
Divide the mixture into 8 equal portions. On the prepared baking sheet, spread each portion into a thin, round tortilla shape (about 6 inches in diameter).
Bake for 15-20 minutes, or until the tortillas are golden brown and firm.
Carefully remove the tortillas from the baking sheet and let them cool slightly before using.
Notes
These tortillas are best when used immediately. They can be stored in the refrigerator for up to 2 days, but they may become slightly soggy. Reheat in a skillet or oven before using.