It's really worth investigating, ,IMO. Sprouts are highly nutritious and don't take up much room, either in the fridge or while growing. I get a sort of kick out of growing on the cheap what can be very costly in the store, too. Many sprouts you can't even find in the store, and some are crazy expensive, like pea shoots, but not bad at all grown at home. You can get seeds in the mail too ... but don't let them sit out in a hot mailbox for long.
If things get too hot -- like a 100 degree van -- then growing may be tough.
I can suggest a couple of books for you that I've found useful:
The Sprout Garden
https://www.amazon.com/gp/product/B0037CFA7G/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
and
Year-Round Indoor Salad Gardening:
https://www.amazon.com/gp/product/B01315U2A8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
The first is solely about planting in soil, which turns out to be easier than I thought it would. The second is about planting all kinds of different ways, including jars, bags, special containers, etc. Both have good info, but the first one covers more different types of sprouts and is a much better introduction to the topic. It's written in a silly style, but is good and has a great chart in the back showing growth requirements of many many seeds. Excellent for quickly flipping to when you need to look it up.
The second is heavily padded, but by the guy trying to convince you that his method is great rather than trying to sell you extra junk. And he repeats himself a lot with some rather dull stories. AND it's quite expensive for this kind of book.
But ... both are good. If I had to pick only one, I'd pick the first, but think RV dwellers might find the second one more useful because it may be easier to haul soil around than water, and you need very little rinsing with soil sprouts, because they grow straight and drop their own seed hulls for the most part. In jars, sprouts tend to grow in all sorts of directions and it can take a ton of water-intensive, and time-intensive, effort to get the hulls out. Also you can grow soil sprouts in any container, and don't need heavy glass jars or pricey and bulky specialty trays. I use 3x6 foil trays and tuck them away in the usual cheap, lightweight plastic cabinets that nomads love. Other reasons too, like not needing to find room to let multiple jars drain their rinse water out. Soil sprouts need little water, no draining, and little if any rinsing.
Anyway, that should get you started. I've seen a fair number of sprouting books at the library too, if you want to check that out.