Heat oil in a Dutch oven over medium-high heat. Add ham and cook for 2 minutes, stirring often.
Add onion and cook, stirring constantly for about 2 minutes or until it begins to soften.
Add water and bring to a boil. Reduce heat, cover, and simmer 30 to 40 minutes or until the ham is tender and breaks apart easily.
Add beans and return mixture to a simmer. Cover and cook for 1 hour or until the beans are very tender and the mixture is slightly creamy.
Use a potato masher or fork to slightly break up about one-fourth of the beans. Bring mixture to a boil.
Meanwhile, unroll pie dough and cut each roll into strips (about 3 inches long and 1 inch wide).
Drop dough strips, a few at a time, into the boiling stew. Reduce heat slightly and cook for 15 to 20 minutes, stirring occasionally, until dough is cooked through.
If the mixture becomes too thick, add additional water to reach desired consistency.
Season with black pepper and serve hot with more pepper if desired.
