Prepare the brownies according to the package instructions, then remove from the oven and let cool in the refrigerator for about 20 minutes.
While the brownies cool, use a melon baller or teaspoon to scoop out the tops and centers of each strawberry. Set each strawberry in the cup of a mini muffin tin.
In a large bowl, beat the cream cheese with an electric hand mixer until soft. Add the mini chocolate chips, vanilla, and cooled brownies and stir until mixture has a thick, dough-like texture.
Take 1 tablespoon of the brownie mixture in your hands and roll it into a ball. Place the brownie truffle inside a strawberry. Repeating with remaining ingredients.
Chill the strawberries in the refrigerator for 30 minutes.
Microwave melting chocolate as directed on packaging in a bowl.
Dip the top of 1 strawberry in the melted chocolate, poke a cookies and cream- Pocky candy stick through the top, and sprinkle with colored sprinkles. Repeat with rest of strawberries.
Let the chocolate set, about 5 minutes, then serve.