I made this last night for myself and my husband and we both absolutely loved it. We're both mushroom, spinach, and olive lovers, so I guessed it would be right up our alley. Did it come out amazing! The whole time we were eating, we couldn't stop saying, "man, this is good!" I loved that there were so few ingredients--this was quick to make. I used a little extra spinach in the filling since we love it, and the taste of the olives really does come through nicely in the finished product. The part-skim ricotta, though exceedingly mild in itself, gives the filling a creaminess that feels much more decadent than 200 calories a serving. The mushroom, spinach, olives, parmesan, and sauce provided plenty of flavor. I did skip the salt, as per the advice of others. I'll be repeating this recipe many times!