Preheat your oven to 375°F (190°C). Line a standard 12-cup muffin tin with cupcake liners and set aside.
In a large bowl, whisk together the eggs, sugar, Greek yogurt, oil, vanilla extract, and lemon zest until smooth and well combined.
Add the all-purpose flour, whole wheat flour, baking powder, baking soda, and salt directly to the wet ingredients. Fold together with a rubber spatula until just combined — do not overmix. A few lumps are fine.
Gently fold in the chopped strawberries.
Divide the batter evenly among the 12 liners, filling each about ¾ full. Sprinkle the tops with coarse sugar if using.
Bake for 18–20 minutes, or until a toothpick inserted in the center comes out clean and the tops are lightly golden.
Let cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.