Cube potatoes and place on a microwave-safe plate. Cook on high for 8-10 minutes, until starting to turn tender.
Heat large cast iron skillet with oil. Add diced potatoes and allow to cook on high heat for 2-3 minutes. Turn and cook for another 2 minutes until lightly browned. Reduce heat to medium low.
Add onion, green pepper, salt, and pepper. Mix in with potatoes and allow to cook for 10 minutes until vegetables are tender. Cover and simmer for 10-12 minutes more until ready to serve. Add fresh parsley before serving. Serves 4-6