Cheese sticks (get used to 'em!), almonds, hardboiled eggs.
If you have time to cook stuff to stock the fridge with, make a batch of little burgers either with turkey or ground beef. Also, deviled eggs, when you get tired of plain old boiled ones. It's pretty quick, if you shovel the filling into ziplock bag and cut a small corner off like a pastry bag.
And, frozen edamame from Trader Joe's. Make a dish of that before you settle in for nursing.