A substantial 3-page Chef mastery project for 7th-grade geometry. Students manage a high-tech pizzeria, solving complex circle geometry (Area/Circumference), fractional area problems for toppings, and 3D logistics (Surface Area, Volume, and Net Construction) for delivery boxes. Includes an "Efficiency Challenge" for comparative volume analysis and a full mastery rubric. Content updated to hit 3-hour duration, fix layout overlaps, and add multiple-choice validation.