Preheat oven to 375 degrees. Grease a 12 cup muffin tin or use paper liners.
Using a medium size bowl, sift the flour,baking powder and salt together, add the sugar to the bowl. Stir to combine.
Cut the cream cheese into 1/2 inch cubes. Add the cream cheese to the bowl, making sure it is completely coated with flour. Separate the cubes if they're sticking together so they are coated on all sides.
In a medium size bowl, add the egg, oil, milk, 1 Tablespoon lemon juice and 1 Tablespoon lemon zest. Whisk to incorporate thoroughly.
Add the dry ingredients to the wet ingredients, stir till just moistened. Spoon batter into muffin tins until they are 3/4 full.
Bake at 375 degrees for 20 - 25 minutes.