If you can't find single serving bags of chips, you can make these using ordinary salted tortilla chips in wax paper bags. Figure an adult-size handful of chips per bag.
In a medium saute pan, brown the turkey meat over medium heat until cooked through. Add the pinto beans to the pan and sprinkle the 1/2 packet of taco seasoning mix over the top. Add the water and stir. Turn heat to low and simmer until the liquid absorbs into the mix and the flavors develop, about 10 minutes. Remove from heat.
While the meat is cooking, use scissors to open the Sun Chips along one side (as opposed to opening at the top). Crush the bags of chips to break them into bite size pieces.
To assemble, put a few generous spoonfuls of the turkey mixture on top of the chips in each bag. Divide the cheese between the 6 bags, followed by the lettuce and tomatoes. To eat, add salsa and/or sour cream, and use a dinner fork to give the contents of the bag a good stir. Eat right from the bag.
Recipe Notes
Read the ingredients on the label or buy at a natural foods market since some brands are made with MSG and other additives you may not want to eat.