Preheat oven to 400. Using nonstick spray, thoroughly spray a muffin sheet.
Combine cornmeal. flour, sugar, baking powder and salt into a medium bowl. Whisk and set aside.
Combine egg and milk with a whisk in a separate bowl, then add to dry ingredients. Using a spoon, stir until combined.
Add in the remaining ingredients and stir until combined.
Using a 1/3 cup measure, scoop the batter and pour in the muffin tin.
Bake for 11-14 minutes, until golden brown.
Cool for 10 minutes and serve.