In a mixing bowl, combine flour, yeast, salt, and sugar.
Add olive oil and warm water, then knead into a smooth dough (5-7 mins).
Cover and let it rise for 1 hour (or until doubled in size).
Preheat oven to 475°F (245°C) and place a baking sheet or pizza stone inside.
Punch down the dough and roll it into a 12-inch circle on a floured surface.
Transfer to a parchment-lined baking sheet.
Spread pizza sauce evenly over the dough.
Sprinkle mozzarella cheese.
Arrange bell peppers, mushrooms, onions, olives, and cherry tomatoes.
Sprinkle oregano and chili flakes (if using).
Bake for 12-15 minutes or until the crust is golden and cheese is bubbly.
Drizzle with olive oil before serving.
Slice and enjoy hot!
