Prepare the Crust: In a medium bowl, combine the graham cracker crumbs, melted butter, and white sugar. Mix until well-coated and resemble wet sand. Divide among shooter glasses to create a compact crust layer.

Mix the Filling: Beat the softened cream cheese and yogurt together until smooth. In a separate bowl, whisk sweetened condensed milk and lime juice until combined. Fold this into the cream cheese mixture until smooth.

Create Two-Tone Filling (Optional): Divide the filling into two bowls. Add green food coloring to one bowl and mix until consistent. This will create contrasting layers.

Assemble the Desserts: Using piping bags, carefully layer the filling into each shooter glass, alternating between the white and green mixtures.

Chill to Set: Refrigerate the desserts for at least 2 hours until the filling is set and holds its shape.