Just wanted to share if anyone was wondering.. I walked from Aria (right by hotel check in) to Wicked Spoon today and it took just under 11 minutes and just over half a mile total.
I used the bridge from the second floor of Cosmo into Crystals that is connected to Aria. I also realized Wicked Spoon is RIGHT by the West End Tower elevators (which is also right next to the self parking elevators). If you follow the signs on the second floor back through their convention(?) area it takes awhile and is a hike. (vs. going down the escalators by Holtsteins to the first floor, following the signs towards valet and taking the elevators labeled West End Tower back to the second floor) It seems like it would take longer, but it's not!