Healthier Zucchini & Chia Pizza Crust

1 medium zucchini, grated (about 2 cups / 250g)
2 tablespoons chia seeds
3 tablespoons water
1/4 cup finely ground oats (or oat flour, approximately 25g) – This replaces some of the almond flour for a lighter, more fiber-rich alternative.
2 tablespoons low-fat or light mozzarella cheese, shredded (optional, for flavor without significant added calories)
1 large egg (or 1 ‘flax egg’ made from 1 tbsp ground flaxseed mixed with 3 tbsp water, for a plant-based option)
1/2 teaspoon garlic powder
1/2 teaspoon dried oregano
1/2 teaspoon sea salt
Cooking spray