Mashed Sweet Potatoes Enhancer

Hello all. I could use some help: I followed a YouTube recipe for mashed sweet potatoes mixing the S.P. with butter, Greek yogurt, cinnamon and some brown sugar (I did not have brown sugar.) And the texture is great and the flavors blend well enough but the mashed is so bland 🥲 its just devoid of any flavor.

I'm used to making sweet potato home fries with layers of savory spices (I just kind of put all the things) and oil and it's fried. So that's the profile I'm used to.

I've tapped out of trying to make fetch happen for tonight. The mash is in my fridge waiting for something inspired.

How can I make this match more savory/flavorful with what I have so far??

Thanks in advance for your advisement!