Boil the vegetables in water on medium heat for about 6 minutes or till tender and cooked.

In a pan, heat butter on medium level for a few seconds. Add the chopped onions and fry for about 3 minutes or till onions are transparent.

Add the flour and milk. Stir well. Now add the vegetables and water. Mix well and keep on medium heat for about 4 minutes. Season with salt and pepper.