Hi, Laurie Ann:
We just got back from about 5 weeks in Italy. Part of that time we were on tours, but we did spend most of it on our own. We were in Venice, Rome, Naples, Siena, and Bologna.
I didn't keep careful track of our food expenses, but in general: breakfast was covered by the hotel, and was usually generous. It was often a buffet, but even the two at which we ordered and were served, we could have as much as we wanted.
Dinners: We usually spent about €50 - €60 for dinner for the two of us. This would include one primo or secondo each; water and wine for both of us, dessert for Stan, and often coffee for both of us. Occasionally we had an appetizer, but not often.
Have you been to Italy? Do you know what primo and secondo mean? Usually, primo (literally "first") is a pasta or risotto dish. Seconded ("second") is meat, poultry, or fish. We would always have either a primo or a secondo each. If you order a pasta and your husband orders steak, the waiter will bring them both at the same time.
Another great idea is salads. The salads tend to be big, with varied ingredients, and are acceptable as a substitute for either primo or secondo. You can get a little green salad to go along with whatever else you have, but the bigger salads are a meal in themselves.
Lunch prices are all over the place. My favorite lunch is to go to a bakery and ask for a sandwich. They may be ready made, or can often be made to order. They are sometimes big enough to share, and are dirt cheap. Our cheapest lunch in Italy was €5: that was one big sandwich and 2 bottles of water. If you ask nicely, they'll cut the sandwich in half for you.
Restaurant lunches would range from about €20 to €50, depending on what we had. A light pasta or salad each, house wine, and water would run about €25 or so. A more substantial meal would, of course, cost more. And on days when we had a big lunch, we would often skip dinner.
Another bargain choice for lunch is a kebab shop. We had very good sandwiches there. Pricier than a bakery, but much cheaper than a restaurant. You might find pizza by the slice, as well. That's a real bargain!