This can be done one of two ways. Brown the meat (and ground beef is normally used) then add other ingredients. Onions and olives can be added. Also two cans of pintos should be used and one can should be drained, one not. One can should have jalapenos but I''ve had trouble finding them so I just add jalapenos to taste.
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The second way is to add all things into the crock pot, stir and cook on low for 6 to 8 hours.