Heat the oil in a large pan over medium heat. Add the chopped onion and sauté until golden brown.
Stir in the minced garlic and ginger paste, cooking for another minute until fragrant.
Add the spices (cumin, coriander, turmeric, and garam masala) and cook for 1-2 minutes, allowing the spices to bloom.
Add the mixed vegetables and stir well to coat with the spices. Cook for about 5 minutes, until they start to soften.
Pour in the coconut milk and add the ground nuts. Stir well and bring to a simmer.
Cover and cook for about 10-15 minutes, until the vegetables are tender. Season with salt to taste.
Garnish with fresh cilantro before serving. Enjoy your korma with rice or naan!