This is the recipe my friend Amy gave me when I asked how she made such wonderful granola:
https://cookieandkate.com/healthy-granola-recipe/
It’s easy to make, and easy to riff on with different ingredients both in the mixture you bake and the ingredients you add in.
For Winter, dried cranberries are the best add-in
For Summer and Spring, dried pineapple, mango, and papaya which I get from Gerbs.