As for food, for a short excursion like yours I tend to not bring a whole lot of highspeed dehydrated stuff, I like the real stuff alot more and as long as I don't have to carry it far it's worth it to me.
While you can't deny how nice some hot food is in the winter, often when I'm out I end up just snacking all day on stuff and sometimes don't actually cook the "meals" that I had planned.
It's gonna be cold so you're metabolism is going to be raised trying to keep you warm. You gotta be sure to take in enough calories.
I would try some summer sausage or pepperoni. Jerky is good too, but not as much fat.
Cheese, it will keep just as well in that sort of weather as it does in your fridge, grab a blocks or two of something you like.
Apples are good if you don't have to carry them too far.
Notice the cheese, sausage and apples all allow you to use your knife to eat them.
I like flatbread or pita bread as it doesn't get smashed. Bagels have travelled decently for me before as well.
Maybe some peanut butter.
Trail mix with alot of nuts is good. I like to make my own which is just half cashews and half dried cherries. some dark chocolate m & ms might be good in that too, might have to try it next time.
Ramen is cheap and easy to pack and make and a nice hot meal, you can throw whatever you want in with it when you're eating it too.
Instant oatmeal is great, I like to throw a handful of my trail mix into it for some variety.
If you're a coffee drinker, the new Starbucks VIA is an expensive but excellent option. Tastes just like real coffee when you add the small packet into hot water. I bring it on all my trips now. Otherwise hotchocolate packets can be nice if you want something warm at night/in the morning.
Snickers bars/cliff bars/whatever you like are a quick bite if you're on the trail and getting hungry.