trailcooking.com
Forget all the hyper-expensive freeze dried crap.
Ban expensive and low calorie (ha, look at the label, how low can they go?) foil wrapped junk full of preservatives.
Eat real food that fits in bear cans. Oatmeal can get old, but you can get other stuff in packets - instant cream of wheat, instant grits. Or bag up some granola and a few spoons of Nido - full fat milk powder, find it in Walmart or grocery stores all over the central valley - and add a little water to have milk and cereal.
You can use any pasta recipe with couscous, the original just add water pasta - mac and cheese has never been easier or less fuel-wasting. The pasta sauce packets, plus butter buds or Nido to add in the butter or milk called for, mix up on the trail too. Or treat the couscous like breakfast cereal - add milk powder, granola or trail mix, dried fruit, whatever - different taste, same base.
With a wooden spoon and an oven, make up dehydrated cooked pasta or rice - minute rice tastes like paper and adding spices to it tastes like paper plus spices. Real rice (basmati, jasmine, brown, long grain, short grain) can be cooked and then dehydrated to have flavor and used as a base to make just about anything. Add boil in bag Thai food from trader joes and you have a great meal. One of my favorites - get a can of your fave chili con carne, dehydrate til crispy, throw in a ziplock, add to dehydrated rice or pasta of choice, bust out a cheddar stick and melt over the top - whoa, tastes like what you have at home.
Buy soup cups - Nile Spice are good, lots of these out there - and repackage into small ziplocks. Buy JustVeggies and add them to ramen bricks.
Pack things in ziplocks, squeeze out the air, roll them up, lay 'em in in layers into the can. stick in trail bars, cheese sticks, or other small dense items in the cracks. Pack it up tight and leave room for trash and hygiene items at the top. With a Bear Vault solo and four days, I still have room for a small box of wine.
Eat REAL food, be happy.