In lg bowl, combine Bisquick mix, milk, yogurt, eggs and lemon zest. Mix well Stir in blueberries.
Coat a lg skillet w/ cooking spray. Place skillet over med-high heat. When hot, pour 1/4 cup batter into skillet. When bubbles start to form in pancake, flip over and cook until other side is brown. Repeat w/ batter. Serve w/ warm syrup.