Preheat the oven to 400°F (200°C).

Place the mini pizza crusts on a baking sheet lined with parchment paper.

Spread a tablespoon of pizza sauce on each mini crust.

Sprinkle shredded mozzarella cheese evenly over the sauce.

Dollop small spoonfuls of ricotta cheese on each pizza for the 'white' layer.

Arrange sliced strawberries on one half of each pizza and blueberries on the other half to create a patriotic design.

Drizzle olive oil over the toppings and season with salt and pepper to taste.

Bake in the preheated oven for about 12-15 minutes or until the crust is golden and the cheese is bubbly.

Remove from the oven and let cool slightly before garnishing with fresh basil leaves if desired.

Serve warm and enjoy your festive mini pizzas!