To make gajar ka halwa, heat 1 tbsp ghee in a non-stick pan, add carrot and cook for 8-10 minutes.
To make green phirni, heat remaining ghee in another non-stick pan.
Grind green peas with 3 tbsps water to a smooth puree. Add peas puree to the 2nd pan and mix well. Cook for 5-7 minutes.
Combine rice powder and ½ cup milk in a bowl.
To make white chocolate phirni, heat milk-rice powder mixture in a 3rd non-stick pan. Cook till it thickens
Add ¼ cup castor sugar to the 1st pan. Cook till the sugar melts, add 2 tbsps milk and mix well.
Add 2 tbsps milk and 2 tbsps castor sugar to the 2nd pan and mix well. Remove from heat. Add ¼ tsp cardamom powder and 2 tbsps white chocolate and mix well.
Add a ladleful of rice milk mixture to the 1st pan. Add saffron and mix well. Simmer for a few more minutes.
Add 2 tbsps castor sugar, remaining cardamom powder to the white chocolate phirni and mix well. Add remaining white chocolate and mix well. Simmer for a few minutes.
Add 1 tbsp pistachios to the peas phirni and mix well.
Pour a portion of peas phirni in individual shot glasses, sprinkle ½ tbsp pistachios in each, add a portion of white chocolate phirni, add ½ tbsp almond slivers. Top each glass with a portion gajar ka halwa, sprinkle few strands of saffron and serve immediately.