Steps
1. Peel and dice the potato, onion, bell pepper, and tomatoes.
2. In a pan, heat some oil and sauté the onions until translucent.
3. Add the diced potatoes and cook until slightly golden.
4. Mix in the bell peppers and tomatoes, then add the spices and ketchup.
5. Cover and simmer until the potatoes are tender.
6. Adjust seasoning if needed and serve hot.