The vegetarian method – Similar to most Persian recipes, Kalam Polo could easily be suitable for a vegetarian diet by leaving out the meat. Increase the cabbage (kalam) by half a pound (total of 1 ¾ pounds), fry the cubed cabbage and set it aside. In the same skillet fry a large thinly sliced onion with ½ teaspoon turmeric. Increase the tomato paste to 2 tablespoons and saute for 2-3 minutes with the fried onions. Add ½ cup of water, ½ teaspoon salt and ½ teaspoon ground black pepper to the skillet and bring it to a boil. Adjust the salt and pepper to taste. Add the fried cabbage to the skillet, stir to mix. Reduce the heat to medium, cover the skillet and cook for 10 minutes. Follow the rest of the recipe substituting the cabbage mixture for the meat mixture.