Street level dining and carry out in Rome and Milan
A fellow chowhound suggested that in my search for handicap accessible restaurants I as for recommendations for eateries with outdoor street level tables (no super hill climbs) or for high-quality shops featuring unique take-away specialty bites, and bars coffees and drinks that are unique to Rome and Milan. Thanks again folks!
It occurred to me to suggest Trattoria Morgana to you because it is only 10 minutes from your hotel (the Ariston, right?) along a wide street with sidewalks. It's always been on my list because they serve snails as a specialty, but I have not eaten there. I imagine that, apart from the snails, it is a fairly ordinary neighborhood trattoria, but it might work for you since that will be your neighborhood!
I noticed in a few other current threads that people are talking about restaurants with outdoor tables, but they are in other parts of town not near your hotel and not necessarily moderately priced. I also don't know if getting to them is at all easy. For instance, PierLuigi is located in a quite nice piazza, with plenty of outdoor seating, but my recollection is that to get there, you need to travel down a very narrow street that has no sidewalks and gets regular car traffic. So I don't know if you would find that comfortable with a scooter.
Some of the other restaurants mentioned I just can't remember whether they would work for you. Maybe looking up the addresses of PierLuigi and these places using Google Street View would make it possible to judge in advance.
and this thread talks about places with good food to take away for a picnic
I don't know what time of year you are traveling and if you are taking in some of the famous historic sites while in Rome, but here are some personal suggestions from me for famed Roman treats if you are going in nice weather and plan to visit famous places:
In Rome, the coffee bar named Tazza d'Oro is behind you when you are looking at the front of the Pantheon in the piazza della Rotunda. Tazza d'Oro serves coffee as chipped ice with whipped cream -- granita di caffe con panna -- that is quite a unique treat in hot weather. (I much prefer it to gelato).
Near the entrance to the Vatican museums is Pizzarium, a now-legendary place which specializes in high-end Roman pizza by the slice (pizza al taglio) and also serves suppli al telefono (hot rice balls with a center of mozzarella).
If you visit the historic Jewish quarter, the cheese vendors Beppi e i suoi Formaggi sells truly memorable, incredibly, stunningly delicious cheeses. I believe they offer take-away light lunches in the afternoons, but even if you only take away cheese, it is wonderful.
Also in the Jewish quarter, in view of the historic and atmospheric Portico d'Ottavia, is da Giggetto, specializing in fried artichokes, fried zucchini flowers (stuffed with anchovies and cheese) and fried fish. All restaurants recs on Chowhound are controversial, so da Giggetto has its fans and detractors, but it has outdoor seating.
Last of all, the Roman specialty of pizza bianca is available in a number of places in and near the Campo de'Fiori and other parts of the Jewish quarter. However, I will also mention Lo Zozzone, which is quite near the piazza Navona if you are going there.
For Milano, if you plan to visit the Duomo and are open to all cuisines of Italy, then the tiny take-away shop called Luini serves up the Pugliese specialty of panzeroti and other panini is near the Duomo
You might not want to leave Milan without partaking in the glamorous cocktails and piles of free food during the aperitivo hour, with some prime destinations being the pedestrianzied via Brera and via Dante
Even though the shop of Peck in Milan is rightly scolded for its ridiculously high prices, if you are in the vicinity of the Duomo, you might enjoy going inside to ogle the goods.
Likewise, if you plan to visit the famed Galleria of Milan (next to the Duomo), you might opt for a somewhat overpriced cocktail at Il Camparino, just for the historic heck of it
If you plan a shopping excursion or just a gawk along Milan's ultra-fashion street, via Montenapoleone, then pastries and hot chocolate at Sant'Ambreous, not far from the San Babila metro, makes for a rich taste of Milan (with outdoor tables that have heating in winter).
One of the hardest things to know in recommending places is what kind of obstacles you might encounter en route, so apologies if any of these places are not truly accessible. Most of all, I hope you can enter into the spirit of eating and enjoying outdoor dining in Rome, and its open air markets, and the outdoor cafe life of Milan -- which may mean taking a flyer on a restaurant that Chowhound posters know nothing about but which appeals to you in passing. In my view, the eating culture in these quite different cities is not merely about what's-on-the-plate and "wow" tastes, but also the fact that Rome's climate allows for a lot of al fresco dining, and Milan's fast pace and obsession with style makes little bites and snacking, plus food-to-go, more a part of the local culture. In both cities, roaring conversation and meeting up with friends to share food and drink is a very robust part of the enjoyment of mealtimes, and while "following the crowd" may not always get you stellar or "best" food, it can get you a true feel for the local culture.
However, I hope some of Rome's residents and frequent visitors will chime in here with recommendations for excellent food PLUS dining in the piazza and streetside. They have more opportunities than I do to find such places.
PS: there is also gelato -- which I rarely eat -- but others can make suggestions (and there are plenty of previous threads on this board for gelato in Rome).
Er Buchetto, on via Viminale, the other side of Termini from your hotel, is famous for porchetta. That might be fun for you. http://erbuchetto.wordpress.com/
The Parana coffee shop, on your side of Termini, facing the front plaza of the station has very good coffee, a good recommendation of Katie Parla.