No, sorrry, I don’t.
Yes, I did understand you on that point. I just was writing quickly. Should have added “all the time.”
Do you have an owner-operated neighborhood restaurant where you frequently go (Kyclades?) where maybe you could chat with the owner/cook off-hours, explain your situation, and say you would like to come by some evenings to get a break from cooking, and would they be able to easily accommodate your ordering dishes without salt? If a restaurant customarily has quality ingredients on the menu, but servies them with salty sauces, ask them if you can occasionally come in and order plain grilled entrees, undressed salads. Some cooks and chefs like the idea of being a neighborhood place that feeds the neighbors. Surely there are some restaurants left in New York that help elderly couples (yes?) who just want a very simple small early in the evening. Least I hope so!
Supper serves roast chicken in 1/2 chicken portions. Don’t know anything about the attitude of the place toward customers, but what about calling ahead and telling them you’d like two orders of roast chicken, entirely unsalted – and you intend to take the second one home? With advance notice, they should be able to do one unsalted bird just for you. If you offer to bring by your own container, they might even let you have the bird “to-go” (without the mashed potatoes? surely salted), unless you are also looking to get out of the house some nights and enjoy being at a restaurant.
I hate to say in Italy that this would be a simple problem to solve, but in most places it really would be. That’s because you would have probably been going to the same trattoria for a long time, already know the cook/staff, and they’d be happy to cook low-salt dishes for you. I once ate lunch in a small mountain town in way-north Italy, near Austria, and the restaurant almost completely filled up with very nicely dressed elderly people, who never even looked at the menu. After some discussion with the waiter, they were bought small portions of that day’s specials or vegetables they requested, pasta with or without sauce (just butter) , fruit or a sweet for dessert --and plainly this was their main meal of the day, and how they managed to stay living independently while not being burdened to shop and cook extensively.