Step 1Heat the oil in a skillet over medium heat. Add the sliced peppers, salt lightly and cook, stirring frequently, until the peppers have wilted and begun to soften, about 5 minutes.
Step 2Add the onion and cook until it has softened, about 5 minutes, then add the garlic and continue cooking until that becomes fragrant, about 1 minute.
Step 3Add the harissa, tomato paste and cumin and cook until the mixture becomes richly fragrant, about 3 minutes. Add the chopped tomatoes and the pimentón and cook until the mixture forms a thick sauce, about 7 minutes. Season to taste with salt and pepper and add more harissa if desired.
Step 4Using the back of a spoon, make 4 depressions in the sauce and crack an egg into each. Sprinkle lightly with salt, cover the pan and cook until the eggs are set, about 10 minutes.
Step 5Sprinkle chopped cilantro over the top and serve immediately, with labneh or Greek yogurt on the side.