We loved this casserole! At the BF's request I used egg noodles (whole wheat - what he doesn't know won't hurt him) and added peas and carrots. I cooked the onions, as Sarah Jayne recommended, and the flavor was great! Thanks so much for this easy and quick recipe!
I usually do my tuna casserole with chicken supreme dry soup mix, but this was nice for soemthing different. I also added some finely shredded mixed vegies which I fried off with the onion before adding to the pasta, I didn't have any cheddar so just added a small handful of parmesan which I mixed in and then sprinkled some on top with some breadcrumbs, served with garlic bread for a quick weeknight dinner, thanks for posting!
I usually do my tuna noodle on the stovetop so I wanted to try out a different method. This was really easy to put together and we did enjoy it. I used reduced fat soup, fat free milk and reduced fat cheese and it still worked okay. I do think the one change I would make for next time is to fry off the onions a bit before I put them in. I have never been able to eat raw onions and the ones in this still had a bit too much of a rawness to them for my tastes but that wouldn't be a problem for those that like onions. Made for Australia/NZ Tag October 2008.