Preheat your oven to 400°F (200°C). Slice the top off a medium head of garlic, drizzle with olive oil, wrap in foil, and roast for 30-35 minutes until soft.

While garlic is roasting, heat remaining olive oil in a skillet over medium heat, add chopped fresh spinach, sauté for 2-3 minutes until wilted, and season with salt and pepper. Set aside.

Once garlic has cooled, squeeze out cloves into a mixing bowl, mash until smooth, and mix in ricotta cheese, half of mozzarella, oregano, and seasoning until creamy.

Spread garlic-ricotta mixture over pizza crust, layer with sautéed spinach, top with remaining mozzarella and crumbled feta. Sprinkle with crushed red pepper flakes if desired.

Bake in the preheated oven for 15-20 minutes until the crust is golden and cheese is bubbling. Remove from oven and let cool for a few minutes.

Garnish with fresh basil if desired, slice, and serve.