Heat the oil in a heavy skillet over medium-high heat
Add the onion and sautee until tender, about 2 minutes
Add the garlic and cook until fragrant, about 30 seconds
Add the tomatoes and their juice, the bell pepper, harissa, cumin, and 1/4 tsp salt. Bring to a low boil/simmer, then reduce heat to medium
Crack the eggs into the sauce, cover, and cook until the whites are set, about 3 minutes
Season each egg with salt and then garnish with fresh herbs. Serve warm with pitas