That is brussels sprouts, the kale is the two purple plants in the first row on the right in the below photo.

Yep that is brussels sprouts too, just trimmed up the day after we made a meal out of the extra leaves.

I had to use shallow trays as the LED light was quite close, so any taller of a pot and it would be touching the lights. Hopefully they can deal with the shallow trays, I hope so.

Yeah growing your own greens would be nice, they just grow right back.. So having enough it would be quite beneficial I think.