Heat oven to 400°F. In medium bowl, combine flour, baking powder, baking soda and salt. Using pastry blender or fork cut in margarine until mixture is crumbly. Stir in cheese and nuts. Add applesauce; stir just until moistened. On floured surface, knead dough gently 5 or 6 times. Place on non-greased cookie sheet; press into 8-inch circle, about 1/2 inch thick. Cut into wedges; separate slightly. Bake at 400°F for 12 to 16 minutes or until lightly browned. Serve warm. 8 to 12 servings.