I rode the West River Parkway up from the St. Paul Lifetime via Ford Parkway and WOW what a path! Darn thing is practically level for a few miles and smoother than an ice rink that’s just been Zambonied. More grip than ice, though.
If you’re looking for a nice easy bike ride in Minneapolis, you’d be hard-pressed to find a better path than the West River Parkway. However, it isn’t all… flat. North of Franklin, it drops off toward the river in about the most giant hill you can find. So, there’s that.