Preheat oven to 375°F (190°C). Grease a pie dish or 8x8 baking dish.
In a large bowl, beat eggs until fluffy.
Add cottage cheese, melted butter, garlic, salt, and Italian seasoning. Whisk well.
Fold in thawed spinach and shredded mozzarella.
Pour mixture into prepared dish and top with grated parmesan.
Bake for 20–25 minutes or until edges bubble and center is set.
Let cool for 5–10 minutes before slicing and serving.