Bake squash at 400F for 20 mins., peel and cut into 1/2" pieces.
Heat oil in a large pot.
Splutter cumin and mustard seeds.
Add onion, curry leaves and garlic.
Sprinkle garam masala.
Cook into a paste.
Add water, lentils, squash, tomato and bay leaves.
Bring to a boil.
Reduce heat, cover and simmer for 45 mins.
Add salt and cayenne pepper to taste.
Remove from heat.
Stir in cream.
:- Serve with naan.