Get the rubbermaid rough tote containers if you can afford them, the storage tote containers if you are on a budget, and put your supplies in those. Stack the stuff in corner space then put some semi-decorative cloth over the stack.
People I know who are really hurting right now and on food stamps are committing to a self help food program of buying and filling one tote-bin with common food each month. Once they get to six bins, start eating out of them when the same food is not on sale somewhere, but keeping the net growth of the food stash to one bin roughly every two months. That's filling the bin with regular stuff they always use. Soap, toilet paper, food, that sort of stuff. So in a year, it is a net storage of around eight bins, two stacks of four in the corner of the kitchen. The kids hit on them less for snacks as the more "snacky" stuff gets circulated to the bottom, but in reality, the stuff gets hit on a lot, just replaced with newer stuff when they go to the stores. What seemed to work best is just getting the same stuff they regularly use, and on tight months the bin-filling is done with cheaper stuff, like bottled water and toilet paper. On other months, it can be box cereal, little debbie cakes, and canned chili.
Big bags of beans and rice work, but to be smart, eventually need to get re-packaged into smaller containers. I do that with the glass jars left over from the more premium spaghetti sauces, but I recently figured out that the big plastic jug containers of picante sauce are good for that since they have a wide opening which makes it fairly easy to pour the beans and rice in and out of, I just have to watch out for making sure the containers are really clean and dry inside before putting the new stuff in them.
I tried grinding regular black beans in a coffee grinder in order to make a faster cooking powder but it did not work so well. Fried the motor in one grinder and then when I finally did make a powder, it still had some chunky things in it, and still requires a lot of soaking before it can be cooked and edible. Just not quite as much soaking as regular whole beans.
If you bug-in, then draw supplies from the stuff, but by having it all in totes, you can fairly quickly load it into vehicles for an evacuation to ground that you can control. For those without good connections with some country people, that probably means a camp area of some sort.
So think the tote bin system in the kitchen. Going with stacks of three or four bins. Four stacks of three bins is a dozen, decent amount of supplies for what could happen, and as a module takes up roughly two feet by four feet on the floor, and at a modest height, you can lay a board accross that works as another shelf in the kitchen.
Another option is underbed storage, but that's probably for your guns and stuff like that in an apartment with kids. You put he bed up on some cinder blocks to hold it a little higher than factory stock, not by a whole lot, just enough to get the tote bins under there. Put gear and stuff in the tote bins, use a king size sheet on your queen size box spring, and let it droop down over the sides, although it might require two sheets to cover to the floor.
Another halfway decent apartment option for guns and gear that has some value to thieves is to put a regular keyed house door deadbolt on the master bedroom closet. You should be able to remove the entire closet knob assembly with a common screwdriver, replace it with a deadbolt, then only slightly modify the doorframe to accept the deadbolt. You might need to attach a knob to the closet door, but chances are that when you put a key in it and need to pull the door open, you can just pull the door open by the key when it is partially turned in the lock. There is a way to put some pins in the doorframe on the hinge side so that if the hinge pins are removed, they have to get at the deadbolt anyway because the pins will hold the door into the doorframe unless it is swung open at the hinge point anyway.
