1Heat the vegetable oil in a large pan over medium heat.
Add the cumin seeds and let them sizzle for a few seconds until fragrant.
Add the chopped onion and sauté until golden brown.
Add the turmeric powder, coriander powder, and red chili powder. Stir well to combine.
Add the cubed potatoes and cauliflower florets to the pan. Mix well to coat the vegetables with the spices.
Add the chopped tomatoes and salt to taste. Stir to combine.
Cover the pan and cook on low heat for about 20-25 minutes, stirring occasionally, until the potatoes and cauliflower are tender.
Garnish with fresh coriander leaves before serving.
Serve hot with rice or roti.