Prepare your beans using a rapid soak. In a large stock pot, bring to boil 6 cups of rinsed and sorted beans. Boil hard for one minute, then turn off the heat, cover the pot, and let the beans sit for one hour.
Meanwhile, over medium high heat, saute chopped onions with the ground beef. Cook until the ground beef is no longer pink, drain, and remove to a 6 qt slow cooker.
After the beans have soaked for one hour, take 8 cups including their liquid, and place in the slow cooker.
Add the water and taco seasoning and stir well.
Cook on high in the slow cooker for 4-5 hours.
Enjoy!
Notes
This recipe yields a tremendous amount of taco meat. I portion it out in four cup portions per meal for my family of six which gives us enough for one recipe of tacos the day I make it, and four to put in the freezer for meals at other times.