Place pizza stone or inverted baking sheet on rack in top third of oven.
Heat oven to 450 degrees.
Transfer stretched dough to parchment.
Dot dough with pesto. Scatter with scallion and cheese blend.
Transfer to oven: Slide parchment onto
stone or baking sheet. Bake 10 minutes, then crack 1 egg on top of pizza, season with salt and pepper, and bake until egg sets and yolk is
slightly runny, 5 minutes.