Preheat oven to 425 degrees
Line pizza pan with parchment paper
If using frozen spinach: defrost then place in tea towel or cheese cloth and wring out as much water as possible
In blender or food processor blend spinach until it is well pureed
Add egg and pulse until combined
Add cheese, salt, pepper, and other spices and pulse until just combined
Spread evenly on prepared pizza pan
Bake for 15 minutes or until edges are browned and crispy
Flip crust and bake for an additional 5-7 minutes
(After baking crust, top with sauce, cheese and choice of toppings then return to oven to bake until cheese is melted)