Add Heading Title into Header

[Nes]

I’ve been writing my own cookbook (just for personal use) to keep track of my recipes.

I’d like to add the heading title to the header on each page.

I frequently add new things to my book and don’t want to reprint it, but I’d like to make sure recipes are in the right section.

There are subcategories for some sections

For example:

• ENTRÉES
  • SALMON
  • LAMB
    • CHOPS
    • GROUND
    • LEG

I’d like the header to read (for example): ENTRÉES - LAMB - GROUND

I’ve built my table of contents using 3 levels of headings, and that’s worked really nicely.

How do I make this happen?

TYIA