Make the crust: Set the oven to 350°F (175°C). In a bowl, whisk together flour, sugar, baking powder, and salt.. Add butter, milk, and vanilla, then stir until a dough forms. Roll it out into a ¼-inch thick circle. Bake for 10-12 minutes until lightly golden. Allow it to cool before adding toppings.
Prepare the frosting: Combine cream cheese, powdered sugar, and vanilla in a small bowl, then stir until the mixture is smooth.
Assemble the pizza: Spread the frosting evenly over the cooled crust. Arrange strawberries, kiwi, banana, and blueberries in a colorful pattern.
Add the glaze (optional): Mix honey and lemon juice. Lightly brush over the fruit for a glossy finish.
Serve and enjoy: Slice and serve immediately, or chill for 15 minutes before serving for a firmer texture.