My new favorite comes from ottolenghi. It's dead simple and extremely delicious.

Fry the rocket for 3 minutes in a ovenproof pan. Season with salt and pepper. Make 2 nests in the rocket an carefully put 2 eggs in the hollows.
Put the pan in the oven and bake for 10 - 15 minutes - 150° until the eggs whites turn white.

Mix the greek yoghurt with some crushed garlic and a pinch of salt.

Melt the butter in a small saucepan, add a pinch of salt and the chili flakes and fry until the butter starts to turn golden.
Add the sage and cook a bit longer. Don't let the butter turn to brown then turn off the heat.

Take the rocket out of the oven. Add a dollop of the yoghurt and drizzle over the butter. Eat immediately.