+1 on trailcooking.com - even if you don't have a dehydrator. Lots of things you can put together there from grocery store ingredients.

I do eat a fair number of packaged dehydrated meals. usually mountain house or natural high with the odd other brand or two.

My other gotos:

breakfast:
instant oatmeal.
fruit bars
"egg and typhus" - half a mountain house egg and bacon, or egg ham and peppers, with half an idahoan potato packet (four cheese or something yummy) in a freezer bag - add 1.5 cups boiling water.)
pop tarts (I never eat these except when hiking)


snacks all day
pita bread
bagels
tortillas
hudson's bay bread I make myself (use search here for recepie)
peanut butter!
dry pepperoni (I have elk pepperoni..)
landjaeger or other sausage
cheese
smoked almonds or cashews
granola bars
snickers bars
if really must, clif bars (don't like 'em much)
Jerky
hungarian dry salami
dry fruit (dates, figs, apricots, apples, pineapple, raisins, craisins etc. etc.)

Dinner:
lipton chicken noodle soup
knorr soups (potato leek, minestrone, etc.)
Kraft mac and cheese (can be made with just a boil and cozy if you're careful) Add pouch of tuna and/or dehydrated onion if you like.
Knorr sidekicks shanghai noodles
Knorr sidekicks alfredo.
Spaghetti (with sauce of olive oil, tomato paste, dry basil, dry garlic, dehydrated onion)
Stove top stuffing with a retort pouch of chicken added.
grocery store "thai peanut noodles" (I then add freeze dried peas to this, but good without)

Honestly, I can do not too horrible just at the grocery store, without buying any real "backpacking" food, although I usually mix up stuff from both sources. Try at home, or on your lunch break at work, first.