If using dough sheets: Unroll both cans of dough. In ungreased 15x10x1-inch pan, place dough; press in bottom and up sides to form crust.
If using crescent rolls: Unroll both cans of dough; separate dough into 4 long rectangles. In ungreased 15x10x1-inch pan, place dough; press in bottom, and up sides to form crust.
Bake 13 to 17 minutes or until golden brown. Cool completely, about 30 minutes.
In small bowl, use a rubber spatula to mix cream cheese, sour cream, dill and garlic powder together until smooth with no lumps. Spread over crust.
Top pizza with prepared vegetables. If the toppings seem loose or not sticking to the sauce, gently press down on them with the back of a clean spatula. Serve immediately, or cover and refrigerate 1 to 2 hours before serving. Cut into 8 rows by 4 rows.