Turkish food: Menemen

I found this recipe in a recipe binder at my house, so I don't know where it's originally from. It is a Turkish street food, and it tastes great! Changes I made: I used chilli powder instead of the fresh red chilli. I also used fresh tomatoes instead of the canned tomatoes.

Ingredients
1 tbsp olive oil
1 tbsp butter
2 red onions, cut in half length ways and sliced along the grain
1 red or green (bell) pepper, halved length ways, seeded and sliced
2 garlic cloves, roughly chopped
1-2 tsp Turkish red pepper, or 1 fresh red chilli, seeded and sliced
1 can (400g) chopped tomatoes
1-2 tsp sugar
4 eggs
salt and ground pepper

Serves 4

Instructions
1. Heat the oil and butter in a pan. Stir in the onions, sliced pepper, garlic and Turkish red pepper or chilli and cook until they begin to soften.
2. Add the tomatoes and sugar and mix them in well. Cook for about 10 minutes, or until the liquid has reduced. Season with salt and pepper.
3. Crack the eggs over top of the tomato mixture, cover the pan and cook until the eggs are just done.
4. Top with parsley and serve.