This comforting Vietnamese Opo Squash Soup (Canh Bầu) highlights the mild sweetness of trái bầu, or opo squash / calabash squash in English. Traditionally, it's made with shrimp for added flavor, but my mom is vegetarian, so this is our family's version. Simple, nourishing, and packed with fresh herbs, this dish as as wholesome as it is delicious. Perfect for a light meal or as a side dish to a larger Vietnamese spread.