Avoid simple carbs. Go with wholemeal bread, if bread at all. Avoid white bread at all costs; it's just simple carbs, not to mention not very great in the fiber department. (complex carbs are the best ones)

I would personally avoid peanut butter because it's high in fat content. Some fat is great 'n' all, but you can get plenty of healthy fats from things like fish. Just a tiny bit of peanut butter is loaded with fat. I've learned that body builders sometimes use it in the "bulk" stage, but if I remember correctly, you're trying to lose weight (like me [ so I wouldn't recommend it, unless you keep it as a "treat". Peanuts themselves can be handy, in considerable moderation, so I've learned, because they can help stave off hunger. But if you go for nuts, try things like walnuts and Brazil nuts; if I remember correctly, they're full of potassium (like bananas) iron, and other minerals.

I think it's best to avoid pasta. I cut out pasta completely and have noticed a huge difference; I suspect it was one of the biggest contributors to my weight gain. There's a reason body-builders use pasta to bulk; it's great for gaining mass/weight.

The chicken, fish, and fruit sounds awesome -- protein, omega 3, vitamins, minerals, and more. I love chicken and fish, especially tuna and salmon. I don't eat enough fruit, to be honest, but I try to get some now and again. I have a hard enough time trying to cram in the shakes, food, workout(s), and whatever else into the day.

Avoid mayonnaise as well; that's another one I strongly avoid, because it has usually just got a lot of crap in it; the last one I looked at was loaded in saturated fat and kinda made me feel a bit ill at the thought that I ate so much. x_x

We all do things in different ways of course, I'm just echoing stuff I've learned from (way too long a time doing) research and what-not.

PS

A treat now and again is awesome.