In a large skillet, add oil and bring to a medium-high heat.
Once the oil is hot, add the onions and sauté for 2 minutes. Add bell peppers and jalapeño to the skillet. Sauté vegetables for another 2 minutes.
Add cubed potatoes, seasoned salt and pepper. Stir to combine all ingredients. Cook potatoes for 5 minutes, uncovered, stirring occasionally.
Cover potatoes and cook for additional 5-7 minutes, until desired tenderness.
Sprinkle with cilantro.
Serve warm and enjoy!