Freshly ground black pepper Coat a nonstick saucepan with olive oil. Add onion and garlic and saute over medium heat until soft. Add water and bring to a boil. Stir in grits, cover and cook 5 minutes or until water is absorbed. Stir well and spoon into a pie plate. Let grits cool until firm enough to slice. Prehea oven to 160ºC . Cut polenta into triangles and place on a lightly greased baking sheet. Bake 5 minutes, then turn and bake 5 minutes more until the edges are crisp. Top with Cilantro & Tomato Sauce. To make Cilantro & Tomato Sauce: Combine tomatoes with water in a small saucepan. Cook until tomatoes are soft, 5 to 8 minutes. Puree tomatoes in a food processor or blender. Return pureeded tomatoes to saucepan. Stir in cilantro, green onion, garlic, chili powder, cumin, salt and pepper. Cook over low heat 5 minutes or until thickened.