Place the croissant slices or mini tart shells on a baking sheet and lightly toast in a preheated oven at 350°F (175°C) for 3-5 minutes until golden and crisp. Remove and let cool slightly.
In a mixing bowl, blend the softened cream cheese until smooth and creamy, using a spatula or mixer. Spread a generous layer of cream cheese on each toasted croissant or tart shell, creating a bright white base.
Spoon or pipe a layer of diced strawberries over the cream cheese on each bite, creating a vibrant red layer on top of the white base.
Top the strawberry layer with several whole blueberries to add deep blue accents, arranging them neatly for visual appeal.
Warm the white chocolate chips in a microwave-safe bowl for 30 seconds, stirring until smooth. Using a spoon or piping bag, drizzle the melted white chocolate over the assembled bites, creating a fine, even layer.
Finally, add a small dollop of blueberry jam on top of each bite for a glossy red accent and extra flavor. Let the bites set for 5 minutes before serving. Arrange on a platter, and garnish with additional blueberries if desired.
