Mix the crumbled feta cheese, 1/2 the cheese, the eggs, spices and flour in a bowl.
Clean the peppers of their stems and seeds. Fill them with half the mixture and arrange in a buttered oven dish.
Pour on the rest of the mixture on top, sprinkle black pepper and oregano. Bake at 392°F (200 °C) about 30 min.
Toward the end of baking, sprinkle with the rest of the cheese and finish baking until golden.
Let it cool a bit and serve.