Combine first 5 ingredients in a lg. bowl; stir in ham and cheese. Make a well in center of mixture. Combine egg and next 5 ingred.; add to dry ingred., stirring just until moistened. Spoon into greased muffin pans, filling 2/3 full. Bake at 400 for 22-25 min. Remove from pans immediately. Yield: 1 dozen.