No matter the size of your yard (and ours is postage-stamp size), the easiest and most usable things you can plant are green onions!
(...which are simply regular onions planted close together.) I plant mine in containers and it's a pleasure to be able to run outside and grab a few for a recipe.
I've mentioned before that Mike loves salmon patties. I chop about a half cup of green onions and pepper (whatever's on hand).
Add a half cup of mayo and a couple of dashes of cayenne peppa.
Add to the mix a couple of (large) packets of salmon (I prefer packets over canned salmon because they don't have bony stuff), a couple eggs and a half cup of bread crumbs. I used a combo last night of bread crumbs and panko, 'cause that's what I had. Seasoned or plain - whatever you'd prefer.
Squirt some olive oil in a pan over medium heat...
...add a bit o' butter...
...make patties and roll 'em in more bread crumbs, and plop 'em in the pan. I usually end up with seven decent-sized patties.
Oh! I almost forgot -