Three Sisters Casserole–an Instant Pot or slow cooker recipe that is healthy and fall-inspired. It’s packed with butternut squash, corn, beans, and warm spices. Serve as a main dish or a side. Pin this recipe for later! Three Sisters Casserole If you’ve never heard of the “three sisters,” it comes from the way Native Americans […] The post Three Sisters Casserole appeared first on 365 Days of Slow Cooking and Pressure Cooking.