Cook rice the way you usually do. Let it cool. Cook Spinach with a little water And keep aside Mix yogurt and rice along with salt. Mix well. Heat oil in a pan and add mustard and when they crackle add urid dal and fry for a while. Add green chilly and ginger. And fry till brown. Add to rice-yogurt mixture. Finally add cooked spinach and mix well. Add little more yogurt if sadam is dry. This is a good lunch to go.