You can substitute goat cheese for feta if you prefer a softer, creamier topping.
Maple syrup can replace honey for a slightly different flavor profile.
For a little heat, add a pinch of chili flakes or cayenne pepper along with the cinnamon.
A drizzle of balsamic glaze can add another layer of sweet-tangy flavor.
For a heartier appetizer, top the roasted sweet potato rounds with chopped walnuts or pecans along with the feta.