Crumble the graham crackers in a food processor. Add pecans, salt, and melted butter. Pulse until mixed. Press the mixture into cupcake liners in a mold.
In a bowl mix cream cheese, greek yogurt, and vanilla. Add the egg, mix, and sugar, and mix. finally add the cake mix and incorporate just until the batter comes together. Mix the sprinkles in by hand.
Pour the batter over the graham cracker crust and bake for 20 minutes. Then chill in the fridge for 1 hour.