In a mixing bowl, combine the softened cream cheese, powdered sugar, and vanilla extract. Beat with an electric mixer until smooth and creamy.
Gently fold in the whipped topping until fully incorporated. Set aside.
Heat a skillet over medium heat. Brush each flour tortilla with melted butter on both sides.
Place the tortillas in the skillet, cooking for about 1-2 minutes on each side until lightly golden and crispy. Remove from heat and let cool slightly.
Once the tortillas are cool enough to handle, fill each one with the cheesecake mixture.
Sprinkle additional Fruity Pebbles on top of the filled tacos for garnish.
Drizzle with chocolate syrup if desired. Serve immediately or refrigerate for up to 30 minutes before serving for a chilled treat.