Grandma-style pizza starts with a thin, sheet-pan dough stretched gently into the corners and brushed with olive oil. Let it rise until puffy, then press dimples across the surface. Spoon crushed tomatoes seasoned with garlic, oregano, and salt over the dough. Add mozzarella—slices or low-moisture shreds—and drizzle more olive oil. Bake in a hot oven until the bottom is crisp and the cheese bubbles. Finish with fresh basil for a rustic, old-school slice.