Hi Myra, sounds like you are making some good choices, but it doesn't seem like a lot of food. Do you know about how many calories you are eating? Are you a not-so-big person to begin with, and how close are you to your goal weight? Also, I don't know if it's the case or not for you, but sometimes being post-menopausal will make the weight slow to come off. Those are just some reasons I can think of. Also, if you have been doing the same exercises for the same time period at the same intensity for a while, your body may have adapted and you might want to think about ways to change it up a little bit.
And now that you don't have to be perfect, you can be good.