This was quite tasty but just too soupy and neither the tomatoes nor onions had cooked enough for our tastes in the 20 minutes recommended, even though I cooked it an additional 10 minutes. Next time I will stew the onions and tomotes a little, thicken them, then add the mashed potatoes and bake as recommended. Did sprinkle a little fresh sweet basil on top of the tomatoes and it gave it a wonderful zing.
This was very tasty. Not soupy like Dorothy experienced. Easy to make and a nice change of pace.
I thought this was a very good country style dish. I took note of the previous comment and sauted sliced onions in a heavy pan, added peeled and seeded tomatoes and reduced some of the liquid. I then topped this mixture with potatoe and cheese and baked right in the pan, Excellent.