Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
In a bowl, whisk together the whole wheat flour, baking powder, and salt.
Cut the unsalted butter into small pieces and use a pastry cutter or your fingers to incorporate it into the flour mixture until it resembles coarse crumbs.
In a separate bowl, lightly beat the egg whites and skim milk together.
Pour the wet ingredients into the dry ingredients and gently stir until just combined, being careful not to overmix to maintain a fluffy texture.
Scoop the biscuit dough onto the prepared baking sheet, forming 1-2 biscuits depending on desired size.
Bake for 12-15 minutes until the biscuits are set and lightly golden.
While the biscuits are cooling, slice the fresh strawberries.
For the creamy topping, mix the nonfat Greek yogurt with a drizzle of honey until smooth.
Split the warm biscuit, layer with sliced strawberries, and generously top with the creamy yogurt mixture.
Serve immediately and enjoy your fresh, fluffy, and protein-packed treat.