I assume you're eating on a Monday, like you posted previously? So really you're comparing Dell'anima's Meatless Monday with Hearth's regular menu?
Why did you decide against Scarpetta or Ciano, which others suggested?
I've not done Meatless Monday at Dell'anima (just other days of the week), the food is excellent.
I have taken vegetarians to Hearth who were quite pleased. The food doesn't feel super Italian to me, though.