Preheat your oven to 350°F.
Brush both sides of each flour tortilla with melted butter and place them in a muffin tin, shaping them into taco shells.
Bake the tortillas in the preheated oven for 8-10 minutes or until they are golden and crispy. Remove from the oven and let them cool.
In a mixing bowl, beat the softened cream cheese until smooth.
Gradually add the powdered sugar and vanilla extract, mixing until well combined.
Gently fold in the whipped topping until the mixture is light and fluffy.
Once the taco shells have cooled, fill each shell with the cheesecake mixture.
Sprinkle additional Fruity Pebbles on top of each filled taco for garnish.
Drizzle with chocolate sauce if desired. Serve immediately or refrigerate for up to 2 hours before serving.