These vegetarian slow-cooker collard greens are a delicious and healthy side dish. Made with fresh collard greens, onions, garlic, and vegetable broth, they are packed with flavor and nutrients. The slow-cooker method ensures that the collard greens are tender and flavorful, while also allowing you to set it and forget it. Serve these collard greens as a side dish with your favorite main course, or enjoy them on their own as a light and nutritious meal.