Add 3 tbsp. of the Carrot paste, 2 tbsp. Beetroot paste and 2 tbsp. Spinach paste to each individual bowl and mix well.
For the yellow colour, add turmeric powder to the fourth bowl and mix well. Leave the fifth bowl as it is for the white colour.
Pour spoonfuls of the coloured batter to a greased idli mould and steam for 15-17 minutes (Last 10 minutes on medium flame). When cool, demould it and serve with chutney for your kid's lunch box meal.