No Time for Dinner

Although I am not working the most ideal shift, I really like my new second job. It's a bit empowering to know that I can make enough to pay our big old mortgage. With my new job, I am leaving my house at 10:15 a.m. and I return at a little after 9 p.m. I eat lunch with the kids in my class, but I don't really have a dinner a time. So, I have been eating in my car while driving from one clients house to another (I am a behavior therapist working with kids with autism-in home sessions). The first day, I found out that it is hard to eat a sandwich while driving. The second day, I sliced my peanut butter and jelly into sixths and it was much easier. I eat carrot sticks, an apple, and a sandwich for dinner in the car. Now, I have lost about six pounds this week, and I am thinking I need to add in or change something. I think that is too much, too fast. What kind of nutritious foods can I add, that I could bring with me, and eat while driving? I like losing weight, but I know that losing too fast is bad for my metabolism and can cause plateaus in the future. I need to be able to make it fast, eat it fast, and still have it be healthy. I think today, I am going to try to add a little to my lunch. Any ideas for meals on the go.