Heat the oil in a large sautÈ pan over medium-high heat. Add the mustard seeds and cook, stirring, until they pop. Add the cumin, coriander, turmeric and cayenne, and cook, stirring constantly, for 30 seconds until fragrant. Add the onions and cook for 1 minute. Add the garlic, ginger, and jalapenos and cook for 30 seconds, stirring. Add the eggplant and salt cook until soft, about 5 minutes. Add the spinach and cook until wilted. Add the tomatoes and cook over medium-low until thickened, 10 to 15 minutes. Add the cilantro and stir well. Season, to taste, and serve hot over cooked rice.
Yield: Makes 4 to 6 servings