Preheat oven to 350 degrees F.
Line muffin pan with liners or grease well with cooking spray. Set aside.
In medium bowl, combine cornmeal, flour, baking powder, salt, and sugar. Mix well.
In large bowl, whisk together buttermilk, eggs, vanilla, and lemon zest.
Add cornmeal to buttermilk mixture and mix until just combined.
Fold in butter and strawberries.
Scoop batter into muffin pan.
Bake in preheated oven 15-20 minutes, until tester/toothpick comes out clean.
Let cool in pan for 10 minutes. Remove from pan then cool completely (or eat warm!)
Enjoy!