2) Dry the pan with a paper towel. Add the oil and heat on medium-high. Add the onion and pepper and cook until softened, about six minutes. Stir in the potatoes, garlic, cumin, oregano and chilli powder.
3) Add the tomatoes and beans and simmer for five minutes or until heated through. Season with salt and pepper. Stir in the coriander.
4) Transfer the hash onto serving plates. With the heat off, wipe out the pan again. Spray it with cooking spray, turn the heat to medium-low and cook the eggs, sunny-side up or over-easy. Put an egg on top of each mound of hash. Serve with hot sauce.