Braise the onions and peppers in oil. Add tomatoes, tomato paste and garlic and heat briefly. Season with paprika powder, salt and pepper. Put the mixture in a baking dish. Carefully crack the egg and pour over it. Sprinkle with grated cheese and bake in the preheated oven (no convection! Otherwise the egg will dry out too much) at 200 ° C for 10 - 15 minutes. Sprinkle with chives.
A crisp, green salad, baguette and a dry white wine go well with it.