Preheat the oven to 350° F. Spray an 8x8 baking pan with nonstick spray or line with parchment paper and set aside.
In a large bowl, whisk together the oats, baking powder, and salt.
2¼ cups old-fashioned oats, 1 tsp baking powder, ¼ tsp salt
Pour in the milk, maple syrup, eggs, oil, vanilla, lemon juice, and lemon zest. Stir until everything is combined. Gently fold in the blueberries.
1¼ cup milk, ⅓ cup maple syrup, 2 large eggs, 3 tbsp melted coconut oil , 2 tsp vanilla extract, 2 tbsp fresh lemon juice, 1 tbsp lemon zest, ¾ cup fresh or frozen blueberries
Pour the oat mixture into your prepared baking pan and top with extra blueberries. Bake for 35-45 minutes, or until the center is set and the top is lightly golden brown. Let the oats cool for 10-15 minutes before cutting and serving.
Make the yogurt glaze: in a small bowl, mix together the yogurt, maple syrup, lemon juice, and lemon zest until smooth. Add more lemon juice if needed. Drizzle over top of cooled oats.
3 tbsp plain greek yogurt, 1 tsp maple syrup, 2 tsp lemon juice, ½ tsp lemon zest