I don't get the salami and tomato thing, it seems because Ray did it everybody else follows unquestioningly! Personally, I will never try it as I hate tomatoes! A fine meal can be knocked up by frying it in chunks with some red onion and garlic, adding some chopped tomatoes (canned, I don't mind them!) and some rice towards the end. Serve with some nice crispy bread if you have it. When I was in Germany, I was able to get chopped tomatoes in a carton which is easier to pack and dispose of then cans.
The recipe isn't mine by the way, Scruff makes this on his Trangia perfectly and is his recipe, although I noticed HFW did it on one of his fishing programmes. I like to think he nicked the recipe off of Scruff!