Spinach Artichoke Chicken Pizza

medium unbaked pizza crust, homemade or storebought

olive oil

half of a medium white onion, diced

garlic, minced

fresh baby spinach, loosely-packed

shredded cooked chicken

jar artichoke hearts, drained and roughly chopped

shredded Mozzarella cheese

shaved or shredded Parmesan cheese

toasted pine nuts

(optional: additional 1 cup fresh spinach, chopped)