Cut vegetables like onion, tomato, potato, and carrot into bite-sized pieces.
Heat olive oil in a pot and sauté the onion.
Add the potato and carrot, and stir-fry together.
Add the tomatoes and mash them well while mixing.
Add curry powder and stir evenly.
Cover and simmer over medium-low heat for 20-30 minutes without adding water.
When all the ingredients are cooked, season with salt and pepper.