Wow! Everyone loved this dish. I switched out the mayo for sour cream, but other than that, followed the recipe as written. It makes a beautiful dish (be sure to use the green tops on your onions). Don't overcook your squash/onion mix...and only heat in oven until hot through and through. You want the veggies to still have a bit of firmness. We forced ourselves not to clean out the dish, for the promise to have the rest of it for dinner tomorrow night! Yum! Thanks for posting such a great recipe that will be a frequent favorite around our house.

Reviewed On: May 7, 2009