Skillet Breakfast Hash

Heat oil in cast iron skillet or frying pan until very hot. Add potatoes, and allow to brown on the bottom, around 2 minutes. Flip potatoes and allow to brown on the other side. Add onion and stir, allowing them to soften another 2-3 minutes. Add ham and stir again another 2-3 minutes. Make well (or indention) into 4 spots in the mixture, all the way to the bottom of pan. Crack one egg into each indention. Sprinkle all with salt and pepper and cover for about 3-5 minutes or until tops of eggs are cooked but yolks are still soft and partly runny.