Not only do you have to get used to the taste, you have to get used to what whole wheat will do to your digestive system. People who have their food supply and don't learn to eat it, cook it, and digest it will be truly sorry when they have to.
I still keep my "Go bag" as we called them in the military, handy in my vehicle and home. A "Go Bag" has to be readily available so you can just head out the door and be able to make it several days if you have to immediately relocate. DO NOT REMOVE items from your "Go bag" until you really need them, it will bite you in the butt, trust me.
I've got some backpack food, 2 quart canteen, pistol with 2 holsters and ammo, compass, maps, cell phone, flashlite, 12 foot of parachute cord, 10 feet of 1/2" rope for Swiss seat and 2 locking carabiners, handheld scanner, small first aid kit. cig lighters, space blanket, Leatherman tool, solar powered AM/FM radio, signal mirror, TP, night rescue strobe with IR lens and GPS. I keep it all in one backpack so I can have my hands free. I also have my running gear from the military which is a harness and web belt setup.
Your first priorities are security, then shelter then water. You can go several days without food but you'll need to find something to eat to keep your wits about you.
If you're not hip on survival techniques, toss in a Boy Scout handbook and survival guide to your "Go Bag".
If you don't own a sidearm, get one and learn to shoot and maintain it properly.
Your best weapon is between your ears. The more info you can cram into that little pea the better your chances of surviving any scenario.