Structured data will not make a bad site rank. What it does is remove ambiguity: it states your hours, your location, your menu, your prices and your delivery options in a form that requires no interpretation. For a restaurant, where hours and location and price are the whole decision, that clarity converts into richer results and better placement in the surfaces customers actually use.
Structured data is only useful when it is trusted, and trust is easy to lose.
More customer frustration comes from wrong hours than from any other structured data field, and hours are also the field most often left stale. Mark up regular hours properly, and mark up special hours for holidays before the holiday rather than after the complaints.
For a business whose peak trade includes holidays, this is not a technical nicety. It is the difference between a customer ordering and a customer discovering you are closed.
Hours markup is the only SEO task that stops people driving to a locked door.
Run every template through a structured data validator on publication and again after any template change, because markup breaks silently during redesigns. Then watch search console for enhancement errors: a spike after a deployment usually means a developer changed a field name.
Not directly in most cases. It improves how results are displayed and how confidently your business details are understood, which improves click-through and eligibility for richer result types. That is worth doing; the mechanism is just not a ranking boost.
Only where an item has genuine search demand and enough to say: a signature product, a distinctive regional style, a dietary category. Generating a thin page for every topping combination creates a low-quality footprint that hurts more than it helps.
One location page with one LocalBusiness block each, each with its own address, coordinates, hours and phone. Do not put every location into a single page: search engines cannot reliably attribute which is which, and neither can customers.
Keep reading
The map pack, location pages, citations, proximity and the small set of things that actually move local rankings for a pizza shop.
Local & discoveryCategories, attributes, ordering links, photos, posts and Q&A: the profile settings that change how many orders a pizza shop gets.
Local & discoveryCutting friction out of direct ordering, because every point of conversion is worth more than any campaign, and every direct order is margin you keep.
Local & discoveryGenerating review volume ethically, responding in a way that helps, and reading reviews as operational data rather than as praise or abuse.
marketing.pizza runs all of it, every night, across every store you have.