This classic and easy-to make soup/stew hits all the flavor notes: savory lentils, sweetness from sweet potatoes, spiciness from the Indian spices. And even better the 2nd day.
I like it with a sprinkling of Garam Masala or crushed red Pepper on top.
The basic recipe is Vegan, but if you are so inclined, top it with smoky bacon bits, goat cheese or pepitas (or all 3!).