These delicious yet light, lemony blueberry muffins will add zest to your meal!
Preheat oven to 400°F. Lightly spray muffin cups with nonstick cooking spray.
In a large bowl, combine flour, sugar, baking powder, baking soda, and salt until well blended. In a small bowl, whisk yogurt, eggs, the egg white, and melted butter until blended. Stir yogurt mixture into flour mixture just until combined. Stir in blueberries.
Into each muffin cup, spoon about 1/4 cup batter; sprinkle each with about 1 teaspoon of granola, if desired. Bake until golden brown, about 15 minutes.
Remove muffins from cups; cool on wire racks. Repeat with remaining batter, partially filling empty cups with water.