It's called GardenWalk and it's down Katella from the parks. It's a long walk, but not horrible. We ended up driving because we were running errands anyway, and I doubt we would have walked it with out 2.5 year old, but adults could walk it.
It's still under construction, but some restaurants are open. There was a PF Changs, a Bubba Gumps, a California Pizza Kitchen and a Cheesecake Factory. We ate at Cheesecake Factory, which I love.