Each community has a Senior Meal Site that all are welcome to go to. I go as a guest of my mothers from time to time because I am not quite sixty yet. Soon, I will be. However, I want to share, that its a wonderful place to eat and to meet people. There are many couples as well as singles.
It's fun to interact with others. To listen to the adventures and trips they have taken. It's really great to focus on others rather then on myself for a half hour or so. Once a month they put out a news letter that details what is going on for the next month and the menu also. I keep it under my laptop.
I will say they are closed on weekends and holidays. The cost recently went up to two dollars and fifty cents. It is the best bang for the buck. Try it, you might like it.