My grandmother sent soup over once a week for a while. Potato soup was my favorite. My other grandmother and DH's grandmother sent over meat loaves that froze well.
Before they were born, we made a tray of veggie lasagna that was AMAZING to have.
I uh, also froze waffles. That was awesome. I made pumpkin waffles with this recipe: http://smittenkitchen.com/2007/11/pumpkin-waffles/
(Unfortunately, there's a pumpkin shortage right now, so, you'll just have to use a regular recipe.)
I also liked quesadillas that I'd frozen in triangles and could pop in the toaster oven.