Wife has stashed lots of canned goods in the pantry's and spare room. Make sure you have a manual can opener tested. Several P38's take no room for simplicity. She has lots of other non perishable foods too plus lots of water.
I have never tried MRE's. Yuk C rations back in Army times.
We do have quite a stash of Mountain House and it keeps growing. In fact today a box load of granola milk blueberries arrived, several pouches. Tomorrow another 14-day essential pack should arrive. All adds to what we already have in Mountain House. Mountain House is very light weight, doesn't take much water. Good for backpacking or...
Have a few Sawyer water filters. Several flashlights and loads of batteries. Solar lights.
Lots of camp gear, several stoves of all kinds, plenty of propane. 3 of the stoves take the iso-butane/propane, others propane and others gas. Then the gas and charcoal grills.
Although we have the generator (exercise it monthly and keep a stash of fuel with Stabil), still want to keep portable radio's to keep up on news. Oh, and my HAM radios (base, HT's and mobile).
Aladdin lamps we still have plenty of but don't really have much use anymore.
Most camp gear in waterproof tote's (tents, sleeping bags, camp pillows, sleeping pads) includes many pieces of survival gear stuff (first aid, emergency mylar blankets, waterproof matches, paracord, etc. etc.).
Don't forget meds, pets, documents etc. and don't let vehicles or generator get low on fuel.
Firearms, ammo etc. if applicable to you. Extra clothing in boating dry bags etc. Power packs & solar chargers etc.
Saws, shovels, tarps, tents.....
Some prepper & survivalist forums have had inputs from those actually in Florida and Houston lately.
Coffee, reading material, cards etc.
Well, supper time means time to go now