I guess my concern would be that by getting your protein from shakes you are going to miss out form the nutrients you get when you get your protein from food. Things like omega oils, the B vitamin group and so on.

With that in mind I would think that the best option is a woman specific shake. Go to your health food shop and and ask them for help selecting one. Body Science make a women's protein shake. They are an Australian company who make quality products. There is another one with Michell Bridges on the container that has lots of added vitamins etc (maybe nature's way?)

It takes 6 weeks to establish a habit so if you can force yourself to take 10 minutes to make yourself a proper breakfast and eat it sitting down that's a healthy habit that will help you for life - special k with natural yogurt would take moments to make and has fibre, calcium and protein.
I usually make a huge soup for dinner on Sunday or Monday night. I feed the family dinner and then have the rest for lunch through the week.