As Darmaster wrote, Breasaola is one of the best affettato (cold meats, sliced meats), the taste is good imo, and it has a lot of proteins and a low fat percentage
The Bresaola produced in Valtellina ( Lombardy) is considered one of the best quality of Breasola( i'm quite sure there are also other very good kinds of Breasaola produced elsewhere, sometimes using horse meat or deer meat instead of beef). The problem of affettati imo is that, on average, they have a lot of salt, so if you eat a lot of them, you are also gonna eat a lot of salt.
Other kind of meat worth to mention is the Fiorentina steak imo, (if you haven't tried it already) I ate it a few times in Tuscany, it's very good.
I don't eat cheese and i rarely eat tomatoes, most tomatoes imo don't have a great taste, I agree with Darmaster that the small kind, the pomodorini, are much more tastier than the regular one. I'm not much into olive oil, but if you intend to buy it, only buy the one stored in dark bottles, the light accelerates the oxidation of the product and therefore the rancidification of the oil.
If you like vinegear with a strong sour taste, red vinegear from wine is quite good, in supermarkets it's quite cheap, so you could buy serveral brands and see which one you like the most, the aceto balsamico of Modena has a bitter-sweet taste, personally i don't like it.
Regarding red wine, if you want a quality product without spending a lot, Teroldego is probably one of the best red wine you can get (quality-price wise), one bottle (75 cl) here costs around 5 euro( i guess in Rome it's gonna cost a bit more). The reserve of Teroldego can be ~4-12 times more expensive ( 20-60+ euro) but it's not worth it imo, the regular Teroldego is very good.
"Among the red wines of Trentino, Teroldego is the most famous, as to be called the "prince of Trentino wines". The Reserve of Teroldego is produced only in great vintages from grapes carefully hand-selected in the best areas of the Piana Rotaliana"
There ain't no red wine like the good old Tiroler Gold(not for that price, imo it's actually much better than more expensive wines), some sources say that this was the name given to this wine in the court in Vienna, then the name changed into Tiroldico and later Teroldego.
Anyway, regardless if it was appreciated or not by some noble cunts, try it yourself and see if you like it.
http://www.cantinarotaliana.it/en/TEROLDEGO-TRENTODOC/Teroldego-Rotaliano