Not sure what to do with these veggies

So a weekend or so ago i went to a farmers market and came home with a bunch of veggies

However i have no idea what to do with a bunch of it.

Sure i know what to do with the spinach, mint, green onions, radishes, and snap peas

But for the rest: mizuna, romanesco, turnips, radish and turnip greens, purple cauilflower, watercress

Im at a loss and dont want it to go bad, but im at a loss. Ive looked up recipes but they all seem plain and dont jump out at me

Thanks for the help in advance