Beat eggs, milk and cinnamon in a glass bowl.  Sprinkle in flax and mix. 

Spray a non-stick skillet with cooking spray and heat the skillet on medium heat. Dip bread one at a time into egg mixture, place in heated skillet, cook until brown on both sides. Place each slice of French toast in a bowl covered loosely with a paper towel until ready to serve.

Place frozen blueberries in a microwave safe bowl.  Cook for 1-2 minutes, or until berries are soft and warm.  Spread berries over french toast.