California Lady is quite right about the Department Stores close by with both food court basements and multi restaurant top floors. I’d also add Ginza6 to the list.
I like the tonkatsu at Keitei on the restaurant floor of the Matsuya Ginza.
One of our strategies was to buy yogurt, fruit and pastries for the next mornings breakfast, some good quality choices in the food courts.
Room usually has small fridge and coffee maker.
There are some good breakfast spots but usually the hotel buffets are a little pricey unless you are a big eater and we found that not many places opened before 10:00 am.
Have a good time

Your hotel concierge should be able to make recommendations and a reservation for you nearby. We ate at our hotel’s top floor bar our first night, too tired for anything more than that. Another night we wanted some some simple vrilled Yakitori and went to Toriyoshi. It is located in Ginza in a high rise building as are many restaurants. Fun experience. No English. Pointed at photos. Delicious.
The thing that surprised us was that so little English is spoken. We had several great meals in Ginza but I am traveling and do not have all the names with me.
We ate lunch in a department store, wonderful. You can buy. beautiful Bento boxes on tne department store basements too.,Also , a surprise, was that restaurants may only serve one type of preparation such as yakitori, tempura. The tempura in Tokyo was out of this world, not greasy at all. Enjoy Japan, one of favorite trips anywhere.