- Bring water to a boil in a large pan. Add potatoes and cook until crisp-tender, about 15 minutes. Drain well and cut into bite-size pieces.
- Heat oil in a large skillet. Sauté onion until golden brown and soft. Add potatoes and bell pepper to skillet and cook over medium-high heat, stirring frequently, until golden brown.
- Stir in corn, tomato, oregano, salt, and ground black pepper. Top with cheese and serve.
Makes 4 servings - ½ cup per serving.