Apple-Cheddar Omelet
Apple Filling:
1 tablespoon butter or margarine
1 medium-size tart apple such as Granny Smith, peeled, cored, and sliced thinly (1 ¼ cups)
1 tablespoon light or dark brown sugar
¼ teaspoon ground cinnamon
Pinch of grated nutmeg
½ cup shredded Cheddar cheese
Omelet:
3 large...