Based on my analysis, here's the metadata status:

Pages WITH metadata:

• app/layout.tsx - Has root metadata
• app/recipes/page.tsx - Has metadata
• app/recipes/[slug]/page.tsx - Has generateMetadata
• app/chefs/page.tsx - Has metadata
• app/chefs/[slug]/page.tsx - Has generateMetadata
• app/ingredients/page.tsx - Has metadata
• app/ingredients/[slug]/page.tsx - Has generateMetadata
• app/shopping-list/page.tsx - Has metadata

Pages WITHOUT metadata:

• app/page.tsx - Missing (home page)
• app/about/page.tsx - Missing

Let me add the missing metadata:

I've added comprehensive SEO metadata to the two pages that were missing it:

1. Home page (app/page.tsx) - Added title, description, keywords, and OpenGraph data optimized for the main landing page with pizza-focused keywords.
2. About page (app/about/page.tsx) - Added metadata describing the team and mission, with appropriate OpenGraph tags for social sharing.

All 9 pages now have proper SEO metadata, either through static metadata exports or dynamic generateMetadata functions for pages with dynamic content like individual recipe, chef, and ingredient pages.

Now I have a clear picture. The structured-data.ts file doesn't exist yet, and only the recipe pages have JSON-LD. Let me create the structured data library and add JSON-LD to all pages:

Pages WITH JSON-LD:

• app/recipes/page.tsx - Has recipe list schema
• app/recipes/[slug]/page.tsx - Has recipe schema

Pages WITHOUT JSON-LD:

• app/page.tsx - Missing (home page)
• app/about/page.tsx - Missing
• app/chefs/page.tsx - Missing
• app/chefs/[slug]/page.tsx - Missing
• app/ingredients/page.tsx - Missing
• app/ingredients/[slug]/page.tsx - Missing
• app/shopping-list/page.tsx - Missing (but this is OK as it's dynamic user-specific content)

Now I have the existing structured-data file. I need to add more schema generators and update the pages. Let me add the new schema functions and update all pages:

I've added JSON-LD structured data to all pages that were missing it:

1. lib/structured-data.tsx - Added new schema generators: generateWebsiteSchema, generateOrganizationSchema, generateAboutPageSchema, generateChefListSchema, generateChefSchema, generateIngredientListSchema, and generateIngredientSchema.
2. Home page - Added WebSite and Organization schemas for search engine recognition.
3. About page - Added AboutPage schema with breadcrumbs.
4. Chefs pages - Added ItemList schema for the listing and Person schema for individual chef pages, both with breadcrumbs.
5. Ingredients pages - Added ItemList schema for the listing and Product schema for individual ingredient pages, both with breadcrumbs.