Preheat oven: Set oven to 425°F (220°C).
Prepare dough: Lightly flour a clean, dry counter. Stretch dough evenly with hands or a rolling pin, avoiding thin spots.
Place dough: Transfer to a baking sheet, pizza pan, or pizza stone (use nonstick spray or semolina flour to prevent sticking).
Add sauce and cheese: Spread tomato sauce evenly, leaving a border. Sprinkle mozzarella cheese over sauce.
Add toppings: Top with feta, olives, red onion, cherry tomatoes, and spinach. Drizzle with olive oil. Sprinkle it with oregano, salt, and pepper.
Bake pizza: Bake for 10 minutes, rotate pan, and bake until crust is golden and cheese is melted, about 10 more minutes.
Rest and serve: Let pizza rest 2–3 minutes before slicing. Serve with cold kombucha.