Prep Oats: Grind half of the oats until fine and powdery using a blender.
Preheat Oven: Preheat oven to 350°F (180°C).
Mix Dry Ingredients: In a large bowl, combine ground oats, remaining whole oats, salt, baking powder, sugar, and lemon zest. Mix well.
1/2 cup rolled oats, 1/4 tsp baking powder, 2 tsp white sugar, lemon zest, 1/8 tsp salt
Mix Wet Ingredients: Add milk, Greek yogurt, and oil. Stir gently until smooth.
3 tbsp milk of choice, 2 tbsp Greek yogurt, 1/2 tbsp oil
Add Blueberries: Fold in most blueberries, reserving some for topping.
1/3 cup blueberries
Prepare Baking Dish: Lightly grease ramekins.
Fill: Divide batter into ramekins and sprinkle reserved blueberries on top.
Bake: Bake for 25 minutes. Test doneness with a toothpick.
Cool: Turn off oven, crack door, and cool oats inside for 5-10 minutes.
Serve: Serve warm or refrigerate for later enjoyment.