Preheat your oven to 375°F (190°C). Lightly grease a 9x9-inch baking dish or line it with parchment paper.

In a large mixing bowl, whisk together the eggs, cottage cheese, mozzarella, garlic powder, onion powder, salt, and pepper.

Stir in the spinach until evenly distributed in the mixture.

Pour the mixture into the prepared baking dish and spread evenly with a spatula.

Bake uncovered for 35–40 minutes, until the top is lightly golden and the center is set.

Let cool for 5–10 minutes before slicing. Serve warm or at room temperature.