I roasted cubes of butternut squash in olive oil and maple syrup but they didn't brown, but are too tender to keep cooking. They haven't retained the seasoning or maple taste. H
I'd turn them into a mash, and season to taste. For future, what temp did you use, how crowded was the pan, and where did you position the oven rack?
Hardlikearmour has a good point. When you roast veggies it should be at high heat (over 400) and if the pieces are too crowded they will steam and not brown.
Turn it into soup. Add seasoning to taste, a little chicken broth, maybe?