Preheat oven to 350°F. In a mixing bowl, add softened butter, sugar, egg white, and lemon extract. Then, beat with a hand mixer until combined.
Slowly beat in almond flour. Once added, beat mixture on low for another 10-15 seconds.
Put crust dough into your greased pan and press firmly until the bottom of the pan is evenly covered. Bake 15-18 minutes.
While the shortbread crust is cooking, mix vanilla Greek yogurt, powdered sugar, and cream cheese in a mixing bowl until it's a frosting consistency.
Wash all fruit and let completely dry. We do not want excess water from the fruit on the frosting or shortbread crust.
Once the shortbread crust is done cooking, let it cool. Frost with homemade icing.
Slice fruit and top your pizza with it. Slice into pieces and enjoy!