Remember that pizza cheese is often not cheese, but a substitute called Analogue Pizza Cheese, made of casein (the protein in milk), starch, vegetable fats, emulsifiers, stabilisers, preservatives, colourings and flavourings. Burger cheese is either the same stuff or "processed cheese" which means scraps of cheese with the same additives. There's very little in the way of nutrition in any of this.

I'm not sure about the tomato paste either, but if the majority of the paste is the additives and the tomatoes have been heat treated and salted and sugar'd to an inch of their lives, you're not getting anything but calories, like mywittiname's comment suggests.

That's something to keep in mind with any processed foods: many of the materials in them are not there to provide nutrition, and don't.