Shrimp: 1. * 1 Tbsp. vegetable oil 2. * 1 large Onion, halved lengthwise and thinly sliced 3. * 2 cloves garlic, mashed with 1 tsp. ground coriander and 1 Tbsp. grated fresh ginger 4. * 1 tsp. ground coriander 5. * 2 lbs. peeled Shrimp (medium size) 6. * 1/4 tsp. black pepper 7. * 1 lb. tomatoes, halved and cut into thick slices 8. * 1 tsp. salt 9. * 4 cups water, approx. 10. * 1 cup grits, soaked in water 11. * 4 ½ cup basmati rice (or other short-grained rice) Topping: