Heat oven to 350 degrees. Grease and flour bottom of 8 or 9-inch square pan. In large bowl, combine quick bread mix (large clear packet), sour cream, water and eggs. Beat 50 to 70 strokes with spoon until well blended. Pour half of batter (about 1 1/4 cups) into greased and floured pan. Sprinkle with 1/2 cup of the chopped apple, 1/4 cup of the chopped nuts, 3/4 cup of the swirl mix (small clear packet). Pour remaining batter over swirl. Spread carefully to cover. Sprinkle with remaining apple, nuts and swirl mix. Bake at 350 degrees for 40 to 50 minutes for 8-inch pan, 30 to 40 minutes for 9-inch pan or until toothpick inserted in center comes out clean.