This finger-licking dip is full of flavour and full of good-for-you ingredients such as beans, bell pepper, onion, and garlic. Make it on the day you need to serve it though: the red onion can dye the dip when left in the fridge overnight. Serve it with a variety of veggie dippers (think carrots, steamed green beans, radishes, grape tomatoes, snow peas, lightly steamed cauliflower, and fresh broccoli).