Just cut this one out and haven't had time to try it. Is it what you are looking for? My Broken Glass Dessert calls for a graham cracker crust in a 9x13. Made it for Easter.
* Exported from MasterCook *

Gem Loaf

Recipe By :
Serving Size : 12 Preparation Time :0:00
Categories : Desserts Salad-Jello

Amount Measure Ingredient -- Preparation Method
-------- ------------ --------------------------------
1 package Orange Gelatin -- (4-serving size)
4 1/2 cups boiling water -- divided
3 cups cold water -- divided
1 package Lime Gelatin -- (4-serving size)
1 package Strawberry Gelatin -- (4-serving size)
2 packages Lemon Gelatin -- (4-serving size)
2 cups prepared whipped topping
Sliced strawberries -- for garnish

DIRECTIONS:
Makes 12 servings
Dissolve orange gelatin in 1 cup boiling water; stir in 1/2 cup cold water. Pour into 9 x 5
x 3-inch loaf pan. Chill until firm. Repeat with lime and strawberry gelatins. Cut gelatins
into 1/2-inch cubes; set aside.
In large bowl, dissolve lemon gelatin in 1 1/2 cups boiling water; stir in 1 1/2 cups cold
water. Chill until slightly thickened. With electric mixer at high speed, beat thickened
gelatin until foamy; fold in whipped topping and gelatin cubes. Pour into 12-cup ring
mold or fluted tube pan. Chill until firm, about 3 hours. To serve, unmold onto serving
plate; garnish with strawberries.