Although it looks like you've got it pretty well covered, I'd make the following comments:

1. You only need 1 light - I'd choose the headlamp, because it can double as a handheld light and is a lot more convenient to use.

2. I don't see a sleeping pad listed; I'd suggest you at least bring a thin closed-cell foam pad for insulation, since the ground could still be cool.

3. I'm not going to go too deeply into your menu, but I'm wondering how you plan to cook all that stuff - you don't include a stove and pot on your list. (I know you can use a fire, and roast the hot dogs on a stick - but it's a bit hard to do the same with mac-n-cheese. ) I tend to avoid perishable foods like hot dogs, myself, but I know people who take them, so I won't quibble too much. If you're interested in simplifying trail life, you might want to move to a simpler menu, but there's nothing inherently wrong with what you list.

4. Once you add that pot, you might be able to eliminate the bowl (just eat from the pot) and, if you decide you can live with just water to drink, you can eliminate the cup, too.

5. As far as clothes, you have what looks like a good cold-weather list. You don't say what kind of hat; for cooler weather, a stocking cap would be a good thing, and perhaps a balaclava. For spring, I'd probably take either the longjohns or the fleece, depending on the forecast, but you may not need both. Also, I prefer shorts for hiking, and would probably not take the long pants. (I carry rain pants, which I notice are not on your list, and let them do double duty on the rare occasions I want long pants. In cooler weather, I wear my longjohn bottoms under my shorts instead of long pants. But that's strictly personal preference.)

Two liters of water capacity is a bit sketchier than I'd choose personally, but I don't know the area you'll be hiking in - you may never need to carry extra water between sources, or have to make a dry camp. I tend to carry only a liter between sources, so I usually bring a 1-liter bottle with a 2 or 3 quart reservoir (Dromlite, Nalgene Cantene, Platypus, or Camelbak) empty in pack. The collapsible reservoir doesn't take up much space in the pack, and 4 quarts is plenty to get me from the last source of the day to camp, cook supper and breakfast, and get me to the first source the next day. (The exact amount you'd need for overnight depends on what you're cooking and how messy it will be to clean up - I might pass on mac-n-cheese at a dry camp.)

Overall, it looks like you've done a pretty good job figuring out what you need. Now, if we can only trick you into talking about the weight of all this, you'll never get out because you'll be too busy reading all the replies!