Preheat oven to 300°F. Wrap all the tortillas tightly together in foil and place in oven for 5 minutes. In a medium skillet, brown the beef or turkey. Add the sloppy-joe sauce (or seasoning, tomato paste, and water, according to the label directions). Place 1 tortilla on each plate. Spoon the sloppy-joe mixture evenly onto each tortilla. Divide the Cheddar evenly among the tortillas and fold them over. Serve with a green salad.