I was trying to make chicken-noodle casserole and didn't have the ingredients for the sauce, so I used Alfredo sauce instead and this is what I came up with...
chopped celery (5 or 6 stalks maybe?)
1/2 large onion, chopped
1 red pepper, chopped
1 can chicken
1 jar Alfredo sauce
3 cups (?) cooked egg noodles
*Mix all together in large casserole dish. Top with crushed croutons (drizzled with butter, of course!), and bake for 30 minutes at 350.