In a large bowl, combine flour, oats, sugar, baking powder, salt and cinnamon. Stir in berries. In medium bowl beat together milk, Hellmann's® 1/2 The Fat mayonnaise-type dressing and egg. Add liquid ingredients to dry ingredients and stir just until combined. Evenly spoon mixture into 12 paper lined or greased muffin cups.
Bake 20 minutes or until muffin top springs back when lightly touched and toothpick inserted in center comes out clean.