Heat oven to 450 degrees with the pizza stone inside.
16 oz pizza dough, stretch out to be about 13" on a piece of parchment paper. Brush with a little olive oil and sprinkle with salt and pepper.
8 oz bag of spinach, wilt 3/4 of it in olive oil. Drain well, chop fine, set aside. Cup up the rest of the spinach and set aside.
Melt 2T butter in a small saucepan, whisk in 2T flour and 1/4t onion powder and cook 2 minutes. Whisk in 3/4c milk, raise heat to med-hi and cook until thickened. Season with salt and pepper and remove from heat. Add the cooked spinach and 1 clove minced garlic. Spread over pizza crust.
Sprinkle the uncooked spinach over top along with some quartered artichoke hearts.
Top with 4 oz provolone, 2 oz mozzarella and 2 oz shredded parmesan.
Bake for 10-13 minutes.
