Preheat oven to 375˚ F. In a large bowl, dissolve yeast in the warm water. Add the oil, salt, sugar, and 2 cups of flour.
Add enough flour to form a soft dough. It will still be slightly sticky.
Turn onto a floured surface; knead until smooth, about 8 minutes. Place in a greased bowl, turning once to make sure the oil is on the top as well. Cover and leave to rise in a warm place for 10 minutes.
While you're waiting you can gather your wild greens and make the pesto, if you haven't already. Then wash so everything is prepared.
Divide the dough in half. On a floured surface, roll each portion into a 13-in. circle. Transfer to greased 12-in. pans. Spread so that the edges are slightly built up. Prick the dough all over with a fork.
Bake until lighlty browned, 12-15 minutes.
