Hey Mary...that's too bad about the sunburning. From what you've described (white/wilting leaves), I too would say that sounds like sunburn. I assume that the damage also occurred in the middle of the leaves first and then spread towards the margins of the leaves. As for whether or not they will make it through this damage, I would say that it all depends on how much damage occurred. If the tips of the plants (more specifically the buds of the plants) were relatively unscathed, then I would imagine that they should make it through. Often times, sunburn in plants is caused by overheating of the plant tissue. The plant's natural way to cool itself off was not sufficient enough to prevent the damage. Plants cool themselves off by allowing water to evaporate from pores in their leaves. Much like when we sweat and a breeze blows by, we feel cool. So if something is preventing a sufficient amount of water from moving from the roots through the stems and out the leaves, then the plant would be more prone to tissue damage from overheating. This can be caused by not getting enough water, or as I suspect what happened here, the plant's roots system was not big enough to compensate for all the leaves that are moving water. I'm making the assumption that the plants' root systems were impeded by being in small pots or plugs. This is not uncommon. To fix this, you can repot the plants into bigger spaces so that the roots have room to grow a bit more before moving them into a full sun position. Or you can plant them into the ground, but provide them will a little bit of shade from some shade cloth or something else that can be removed later when the plants are more established. The shade cloth would keep the plants cooler while still providing enough energy to grow. You would want that shade cloth to be temporary since the fruits and vegetables you described all do best with lots of sunlight. I hope this was helpful. If you have any more questions please feel free to reply. Happy Gardening!!! --Robby