1. Preheat the oven to 375°F and line a 12-cup muffin tin with paper liners.

2. In a medium bowl, whisk together the flour, sugar, baking powder, and salt.

3. In a separate bowl, whisk together the melted butter, eggs, milk, and vanilla extract until smooth.

4. Pour the wet ingredients into the dry ingredients and stir gently just until combined.

5. Fold in the chopped strawberries carefully so they stay intact.

6. In a small bowl, beat the cream cheese and powdered sugar until smooth and creamy.

7. Spoon a little muffin batter into each muffin liner.

8. Add a spoonful of cream cheese filling to the center of each muffin cup.

9. Cover with more muffin batter until each cup is about three-quarters full.

10. Sprinkle the tops with the remaining tablespoon of granulated sugar.

11. Bake for 18 to 22 minutes, or until the tops are lightly golden and the muffins are set.

12. Cool in the pan for 5 minutes, then transfer to a wire rack before serving.