Microwave the veggies until just tender.
Heat 2tsp oil in a saute pan; add the onions and grated ginger, cook till onions are just translucent. Don't let the onions change color.
Next add the other veggies along with coconut milk, sambar powder, turmeric and salt. Simmer till the veggies are cooked through.
Finally add the coconut cream and cook for 2~3 minutes.