In general Italian food isn't spicy. Of course I've had people try and convince me fish is spicy so who knows what his standards are.

Plenty of non tomato dishes. Everything from pizza to pasta to basically everything else.

Or has a French woman once said. Let him cake.

There is definitely gonna be more than enough food to go around lol. Plenty of non spicy and non tomato based dishes in the Italian cuisine, also you can get almost anything customized to eat, add or remove veggies if you want. The best part about food in Italy is the quality of the ingredients. The produce is so fresh, grains are high quality and sprayed with minimal chemical pesticides, the dairy is something so even a lactose intolerant person could eat and not die from stomach issues. All in all he is not just gonna have enough food to eat but some of the best quality and nutrient rich food too.