“Texas Dirt” is a name that has been attached to several culinary creations. “Texas Dirt” usually is a banana pie served in a flowerplot of crushed Oreo cookies, but “Texas Dirt” can mean the chocolate sandwich cookies themselves.
 
 
http://www.msnbc.msn.com/id/13940007/page/2/
Texas Dirt, a banana pudding pie with crushed Oreos, is said to be a descendent of the sugar cream pie. Further distillations can be found as buttermilk pie (or magnolia pie), sour cream pie and banana cream pie. Even pecan pie is thought to descend from this Midwestern favorite.
   
 
http://www.restaurant.org/rusa/magArticle.cfm?ArticleID=163
Specialty dessert pies include “Texas Dirt,” a cream-and-banana-pudding pie served in a flower pot with crushed Oreos and a flower on special occasions, and “German Chocolate Pie,” made with cocoa, butter, pecans, chocolate, whipped cream and coconut.
 
 
http://www.homespunnoriginals.net/texas_gifts.html
Texas Dirt Cookies are made with Chocolate Sandwich Cookies to give the look of traditional Texas Dirt in the summer.  Dry and cracked, our Cookie recipe comes wrapped in a Texas Flag Bandanna and includes a garden implement.  Makes 1-2 dozen; Start to Serve: 45 min.

   
http://www.texasbob.com/krecipe16.html
Texas Dirt
Ingredients: 1 large package of Oreo cookies (the original Oreos)
3 packages of instant French Vanilla Pudding
1 12 oz. container of Cool Whip
1 8 oz. package of cream cheese (softened)

1-10 oz.
2 - 6oz. Clay Flowerpots (preferably new) 
A few Gummy worms (optional)
A Few Silk Flowers to plant in the “Dirt”  (...)