Preheat the oven to 350℉. Spray a 9×13 baking dish and set aside. Rinse blueberries and allow to dry.
In a mixing bowl, add the blueberries, sugar, lemon zest, and lemon juice Stir gently just until combined.
In a separate lager mixing bowl, add the dry lemon cake mix, milk and melted butter. Whisk together until smooth and combined well..
Stir half of the blueberry mixture into the lemon cake mix batter. Pour the batter into the prepared baking dish.
Sprinkle the remaining blueberry mixture over the lemon cake mix batter.
Bake for 35-40 minutes or until the blueberries start to bubble and the edges of the cake are golden brown.
Remove the cobbler from the oven and let it rest for 10 minutes.
Serve warm with a scoop of vanilla ice cream on top!