I agree about MSR pots etc. We also take a decent frying pan. Worth it in the long run for cooking up better meals.
I use 2 wolf boxes for food and kitchen stuff. One is a day box, and has everything in it to make tea, coffee and picnics on the go, has all our cutlery, plates and sharp knives, chopping board, mugs, glasses (a must for a glass of wine) kettle, small gas burner and gas canister, olive oil, salt/pepper etc etc.
The other box is for main meals and includes more condiments and more olive oil, and so on, you get the picture.
Both boxes slide out the back of my Land Cruiser thanks to a simple but effective shelf, a 2 ring cooker slides out and is hooked up to a gas cylinder and we either cook on the fold down tailgate or round the side of the vehicle. Some food is stored in the second box but the stuff we buy is kept in the back seat area of the car depending what country we are in and what there is to buy.
I thought about the drop down shelf idea but gave up on it because of weight and on rough roads and corrugations I cannot see stuff staying still for long. When we pack our boxes up they tend to be jammed tight so nothing can move around too much. The boxes, like everything else then get strapped down with ratchet straps that are quick and easy to loosen off and tighten.
I take lots of camera gear on our trips and tripods and Peli cases tend to be the only things that slow us down a bit when we make a food/drink stop as they sit in the back load area.
Just my thoughts.
Roman - you can get small plastic boxes that seal well , have good clips on all 4 sides and dust doesn't get in. We use them for tea, coffee, sugar etc.