Frozen Key Lime Pie

My Mother in-law made this while we were visiting for Christmas, and everyone really liked it. It was a new recipe she tried and out, and I think it's a keeper.

Ingredients:
Crust:
1 1/4 cups Graham Cracker Crumbs
2 TBSP Sugar
1/4 cup Melted Butter

-Mix together and press into a 9" springform pan. Freeze for 15 minutes

Filling:
1 pint Lime Sherbet
1 pint Hagen-Dazs Zesty Lemon Sorbet
1 pint Vanilla Frozen Yogurt
1 TBSP fresh Lime Juice

-Soften and mix together in mixer. Spoon into crust

1/4 cup coconut, toasted
fresh limes for garnish

-Sprinkle with toasted coconut and freeze for at least 4 hours
-Let stand 15 minutes before slicing and serve with sliced lemons on top