Sicilian Pizza

Ingredients

• 2 pkg. dry yeast
• 2 c. warm water (not hot)
• 7 1/2 c. flour
• 2 tsp. salt
• 3 Tbsp. olive oil
• 1 (8 oz.) can tomato sauce or use prepared or homemade spaghetti sauce
• 1 lb. Mozzarella cheese, sliced or grated
• 1/2 tsp. oregano
• 1/8 tsp. pepper
• 3 Tbsp. oil
• 1/3 c. grated Parmesan cheese
• other toppings (optional)