Brown the ground meat and onion in a skillet. Meanwhile, stir the remaining ingredients (except the water) into a 3.5 quart crockpot and turn it to low heat. Drain the meat and mix well with the ingredients in the crock pot. Cover and cook until it simmers, stirring occasionally. Turn the crock pot down to the warm setting and serve with tortilla chips. If the dip gets too thick, add 1/3 cup of water and mix.