Heat oil over medium heat in a wide pan. Saute in this order: Onion, ginger, tomato puree, carrot, cauliflower, capsicum, and broccoli. Add sugar and salt. If the mixture is too dry, add 1 tbsp water or so the veggies are sitting in a dip-able sauce. Add Idlis. Let idlis absorb the flavor for 1 minute. Remove from heat and serve!
You may use pickled artichokes and roasted peppers for a western touch to the dish.