Heat oven to 425degreesF (or 400degreesF for dark or nonstick pan). Place paper baking cups in 12 regular-size muffin cups, or grease (or use cooking spray) bottoms of muffin cups. (For best results, use paper cups.)
In medium bowl, stir muffin mix, water, applesauce and egg product just until blended (batter may be lumpy). Divide batter among muffin cups (about 2/3 full).
Bake 15 to 20 minutes or until golden brown and tops spring back when touched. Cool 5 minutes; carefully remove from pan (if not using paper cups, run knife around edges of cups before removing). Cool completely before storing.