- Preheat oven to 350 degrees F. Place pizza crust on baking sheet. a small bowl, mix together olive oil and sesame oil. Brush onto pre-baked pizza crust, covering entire surface. Stack the spinach leaves, then cut lengthwise into 1/2 inch strips; scatter evenly over crust. Cover pizza with shredded mozzarella, and top with sliced mushrooms. Bake in preheated oven for 8 to 10 minutes. Serve hot with ketchup.