Preheat your oven to 375°F (190°C). Grease or line a 12-cup muffin tin with paper liners.
In a large mixing bowl, combine the flour, sugar, baking powder, baking soda, and salt.
In a separate bowl, whisk together the milk, oil, egg, and vanilla extract.
Gradually add the wet ingredients to the dry ingredients, stirring just until moistened.
Gently fold the chopped strawberries into the batter.
Divide the batter evenly among the prepared muffin cups, filling each about ¾ full. If desired, sprinkle a little additional sugar on top of each muffin for a sweet, crunchy top.
Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
Allow the muffins to cool in the pan for 5 minutes, then remove them from the pan and transfer to a wire rack to cool completely.