Dhaan Shaak

Ingredients

• ["The lentils and Vegetables", "1/3 cup of green lentils", "1/3 cup of Pui lentils", "1/3 cup of Masoor Dal [skinned and split lentils, which are orange in color]", "2 tablespoons butter", "1 and 1/2 cup finely chopped onions", "1 and 1/2 cup roughly chopped ripe tomatoes", "3/4 cup of peeled and diced calabassa/calabaza squash", "3/4 cup peeled and diced winter melon", "3/4 cup diced Indian or Japanese eggplant", "3/4 cup diced Yukon Gold potatoes", "2 cups [packed] baby spinach leaves", "2-3 cups of water", "For Dhaan Shaak Masala /Spice paste", "1 tablespoon coriander seeds", "1/2 tablespoon cumin seeds", "2 dried red chillies, about 2 \" long [Indian variety]""