If desired place dried, washed beans in a bowl, add water and let them stand at room temperature for 1 to 2 hours.
Place lentils and carrots in the bottom of the pot. Cover with 4 cups of water or enough water to slightly cover the lentils.
Place the rack or the steaming platter over the lentils. Add all the rest of the ingredients except salt on this rack or plate. Close the steam pressure cooker and cook for 8 minutes in medium. Allow the cooker to rest 8 minutes more, closed, and it will let out most of the steam slowly this is called the warm stage.
Remove the vegetables on the steam rack and transfer them to a blender container. Also, remove the carrot from with in the lentils and transfer them to the blender with 1 cup of liquid and 1/2 cup of lentils. Add the salt now to the blender too. Blend to puree.