Steps
1. Heat olive oil in a skillet over medium heat.
2. Add the chopped onions and sauté until they are translucent.
3. Stir in the minced garlic and cook for another minute until fragrant.
4. Add the diced potatoes to the skillet, and season with salt and pepper.
5. Cook for about 10-15 minutes, stirring occasionally, until the potatoes are golden and tender.
6. Mix in the ketchup and stir well to combine.
7. Cook for an additional 2 minutes, allowing the flavors to meld.
8. Serve hot, garnished with fresh parsley if desired.