If you're making your own pizza dough, start with the preparation needed for that first. Roasting garlic takes about an hour if you don't have it already made (about the same time it takes to make and let spelt pizza dough rise).
If your dough needs time to rise after being rolled out, be sure to roll it out first and place on a lined baking sheet. If it doesn't need to rise, do the same, but proceed with the next step immediately.
1 pizza dough
Preheat the oven to 230°C (450°F).
Distribute the roasted garlic cloves evenly over the base of the pizza, leaving 2-3cm (~1 in.) free around the edge.
3 heads roasted garlic
Top with the spinach, then place the artichoke hearts around the pizza, aiming for each piece to have a section. Top with an even layer of the sliced zucchini.