Saute the onions, garlic and garlic powder in the olive oil until tender. Once cooked, combine thee onion mixture with the rest of the ingredients in a slow cooker. Cook on low for 4 hours or high for 2 hours. To serve, you can add cheddar cheese and a dollop of sour cream. We serve ours with Tostitos "dip" chips. Recipe serves a family of 5.