Tomato and Cauliflower Curry

Name: Tomato and Cauliflower Curry
Ingredients: 1 teaspoon cumin seed; 1 teaspoon coriander seed; 1 teaspoon fennel seed; 3 tablespoons ghee or neutral vegetable oil; 1 large yellow onion, trimmed, peeled and diced; 3/4 teaspoon sea salt, divided; 4 cloves garlic, smashed and peeled; 2-inch section ginger, peeled and minced; 1-2 green chilies, seeded and sliced; 1 teaspoon ground tumeric; 1/4 teaspoon ground cayenne pepper; 3 medium potatoes, scrubbed and cut into a 1/2-inch dice; 28 ounce can of Hunt's Diced Tomatoes; 1 medium head cauliflower, cored and cut into 3/4-inch florets; 2 tablespoons cilantro leaves, minced; 1 freshly grated nutmeg