Categories and Tags
Create them first, and then keep them in a spreadsheet. ONLY use those tags and categories. This will make it easy for visitors to find your content.
Here’s an example of a good category/tag hierarchy:
Categories (more broad):
Breakfast Recipes
Lunch Recipes
DInner Recipes
Snack Recipes
Tags (more specific):
low calorie,
sweets,
sugar free,
superfoods,
fruits,
veggies,
vegan,
vegetarian,