YEG - Frozen Butternut Squash
The downtown Planet Organic came through with the Stahlbush brand butternut squash. Luckily it was on sale so definitely a better option than peeling and cubing them myself.
I don't have a Costco membership so I wasn't able to try that but I'll find someone to tag along with the next time I need some. That would definitely be a cost effective and efficient solution.
Thanks to everyone for their replies.
Save On should have small (albeit pricey) bags of frozen butternut squash in the organic aisle-Stahlbush brand I think. Otherwise I second the Costco suggestion--particularly after roasting and cubing two large ones myself the other day. Btw they're usually in the walk in cooler (with the baby carrots, fruit trays etc).