Heat your oven to 375 degrees.
Place a heavy bottomed pot or cast iron skillet on a burner over medium heat.
Add the olive oil, onion and red pepper to the pan and cook, stirring occasionally, until the onion has become soft – about five minutes.
Add the kale to the pan and cook, stirring occasionally, until the kale has wilted.
Add the garlic, cumin, Aleppo pepper, tomato sauce and a pinch of salt and pepper to the pan.
Stir everything together and cook for five minutes, or until the tomato sauce begins to bubble and thicken.
Using the back of a spoon, carve out six little divots into the sauce and crack an egg into each divot.
Sprinkle the crumbled feta over everything and transfer the pan to the oven and bake until eggs are just set – 7 to 10 minutes.
Sprinkle with chopped chives and serve warm with toasted sourdough bread.
