Indian yellow squash curry 

Wash 3 small yellow squash (1 lb), then cut into ¼ inch rounds.  Separately, heat 3 Tbsp neutral oil in a Dutch oven on medium heat, then add ½ small onion (grated).  Saute until onion is golden brown, then reduce heat to medium-low and add 1 small fully ripe tomato (halved and sliced).  Cover the pot and cook until tomato is soft and mashable, stiring every minute to make the onion and tomato into a paste.  Stir in ½ tsp cumin seeds, ¼ tsp each cayenne and black pepper, and ¾ tsp salt, then cook uncovered for 3 mins.  Fold in the squash, allowing to cook for 2 mins.  Add 1 cup water.  Bring to a boil, then reduce to medium-low.  Simmer until squash is tender (about 10 mins).  Recipe from Healthy Vegetarian Indian Cooking by Shubra Rahimeni (July 2015).