Bund Gobhi / Patta Gobhi Ki Subji (Stir Fry Cabbage)

Ingredients (15)

• 2 tablespoons vegetable oil, or canola oil
• 1/2 teaspoon mustard seeds
• 2 green chiles, finely chopped
• 5 to 6 curry leaves
• 1 (2-inch piece) ginger, grated
• 2 large tomatoes, cut into 1-inch cubes
• 2 medium potatoes, quartered lengthwise and sliced thinly, optional
• 1 cup frozen peas, optional
• 8 to 10 ounces (250 to 300 grams) cabbage, sliced very thinly
• 1/2 teaspoon turmeric powder
• 1 teaspoon ground coriander
• 1 teaspoon ground cumin
• 1 teaspoon red chili powder
• Salt, to taste
• Fresh coriander, chopped, for garnish