1. Preheat your oven to 350°F (175°C). Generously grease a 9×13-inch baking dish with butter or cooking spray.

2. In a large mixing bowl, crack all 12 large eggs and whisk vigorously until yolks and whites are fully combined and slightly frothy.

3. Add the cottage cheese and milk to the whisked eggs, stirring gently until just combined (keep some curds intact).

4. Sprinkle the all-purpose flour, salt, and black pepper over the egg mixture and stir until just incorporated.

5. Gently fold in the shredded cheese and any optional add-ins (sautéed vegetables, cooked meats, herbs) until evenly distributed.

6. Pour the entire mixture into the prepared baking dish, spreading evenly with a spatula.

7. Bake for 35-45 minutes until the top is golden brown, the center is set, and a knife inserted into the center comes out clean.

8. Remove from the oven and let cool for 5-10 minutes before slicing and serving. Garnish with fresh herbs if desired.