Indoor window garden edibles?

Hi all,
For right now I am living in an apartment and my only option for a garden is indoors... Luckily I have a west facing window wall.
I have some herbs and garlic that are doing great (sage, basil, rosemary, parsley) but I am looking to add more vegetables that can survive in limited space with less than ideal lighting.
I have some radishes growing, but they are very leggy. Any thoughts?

I have a huge pot I want to do potatos, beans or peas, and spinach or arugula in.
I'm also starting some tomato and ghost pepper plants... Well see how it goes. I am also going to try and follow the footsteps of researchers on England who were amazed at the ease and success of grafting a tomato top onto a potato bottom... This could be a really great option for people like me who have very limited space but love both of those space hogging staples! I'll post a link to the article and pictures as I go along.

The point is, I would love to hear any suggestions for maximizing my space, good veggies or particular varieties I should try, seasonal recommendations, and hints of any kind!
Thanks!

Tomato/potato grafts? HAH! Brilliant!

I mean, I prefer not to, if I have a choice, but I am always either pruning or accidentally damaging my tomato plants, or losing them to storm damage. I will try it the next time that happens.

Talk about stacking functions!

-CK

I have had some success with cut-and-come-again lettuces in pots. You can also grow sprouts in a jar or microgreens quite easily, and there's always the option of mushrooms--they don't need any light.

I grew tomatoes in deep pots in my garage this year and the yields were better than those outside (the climate just isn't warm or sunny enough for outdoor tomatoes here) though I still didn't get many! And I found the flavor really wasn't much better than a store bought tomato: I don't think the effort was worth it. I also grew sweet peppers in there, which did marginally better, but still a lot of effort for not great yields. Flavor was better, though.

Oh yeah, at the moment I've got an 18 month old pineapple top growing a fruiting spike (or whatever those fruiting offshoots are called). It's spent most of its life as an indoor pot plant in a south-facing window.