I couldnt go past this thread with out adding as you both have mentioned the two foods that basically make up my whole diet!!
I am a plain as jane eater all the time!!! Toasted cheesies (even minus the onion CQ!!! ) and peanut butter and jelly (or jam as i have been told to say it here in Australia) on fresh bread is the best!!!!!!!!!
My other favourite is the Kraft macaronni and cheese.... nothing else- just a bowl of macaronni for lunch!!

My poor Dh who does all our cooking is astounded at my "picky" eating.. lol but not in the sense that i like things extravagant and fancy- i want them plain and simple!!! lol We never go out to eat anywhere coz its a waste of time taking me anywhere but maccas or pizza hut!!! lol And its only since being pregnant and breastfeeding that i actually make sure i eat vegies!! lol