Preheat oven to 300F (200C)
Chop your bread rolls into cubes. Separate eggs whites from egg yolks in two separate bowls.
Place chopped bread rolls into a large bowl and cover with milk. Let sit for a few minutes, until the bread absorbs most of the milk. Squeeze out any excess milk and drain.
Whisk egg yolks until smooth and mix in with the bread equally.
Add bacon bits (if using), melted butter, chopped nettles, chopped chives and parsley. Mix well.
Then add in the baking powder, salt, pepper and nutmeg to taste.
Whip egg whites until you get stiff peaks. Gently stir into your mixture, being careful not to overmix.
Grease the inside of a baking dish with butter. Pour the mixture inside the baking dish
Bake for roughly 30minutes, until the top is golden brown.
Serve sprinkled with fresh green herbs.