Navratan Korma

Name: Navratan Korma
Ingredients: 3 tablespoons vegetable oil, divided; 1/3 cup mixed nuts (cashews, pistachios, almonds); 1 medium onion, grated; 0.5 teaspoon garlic paste; 0.5 teaspoon ginger paste; 1 (8 ounce) can tomato sauce; 1 teaspoon cayenne pepper; 0.5 teaspoon ground turmeric; 2 teaspoons ground coriander; 1 teaspoon garam masala; 1 cup water; 0.25 cup raisins; 0.5 cup chopped carrots; 0.5 cup chopped green bell pepper; 0.5 cup chopped fresh green beans; 0.5 cup green peas; 1 cup chopped potatoes; 4 ounces paneer, cubed; 0.25 cup milk; 0.25 cup heavy cream; salt to taste