I've been using peat pots to start my seedlings, with variable results -- corn sure as heck loves those things, artichoke not so much.

I've got Red Robin and Sungold cherry tomatoes, but I think every other tomato plant I have are globes -- mostly slicer varieties, instead of sauce.

I've not tried eating the leaves and stems of my nasturtiums, since I planted them for edible flowers... but I think I'll try it now!

lol. I think Growstuff might be right up your alley.