The Angry Gard'ner

86mm f/4.2 1/100s
I saw the idea on a Food Network challenge last week, but this is my take on the whole thought.
I was lazy, but it works.  I bought a pre-made pizza crust from Win-Co (a store which I love) 12in diameter and very thick.
For the sauce:
1 cup sour cream
1/4 cup whole milk
1 1/4 tbls garlic powder
2 tbls parsley
1 Tbls ground pepper (fresh ground of course)
Salt to taste (remember that the potatoes are not salted [...]