It must be the water?

A week ago, we planted seeds - squash and peas - in a little indoor greenhouse in an effort to get a jump on having fresh veggies this summer. Seemingly overnight, the greenhouse went from looking like this:

To looking like this - these seedlings are on crack... It must be something in the waster! And our dining room table is starting to resemble a jungle:

I am now concerned on several levels -

• I didn't anticipate this level of success - I figured only 50%, if that much, of the seeds would sprout at all and in reality we are looking at nearly 100% success.
• They're growing at an exponential rate - literally an inch or more overnight - especially the squash. They actually pushed the greenhouse lid off in the night before last.
• I have a very limited amount of "portable" planting resources - I was only planning on one pot of each type of plant - so two different pots of squash and one of peas. I could now plant two dozen pots of EACH plant
• I don't want to throw them away, it'd be murder! (not to mention a waste of resources)
• I can't plant them in the ground yet, I'm not sure that the freezes are all over but I'm afraid they might get big enough to eat the small dog very soon.

I think I may plant some in the compost pile - it's got a lot of dirt in it right now. But that puts them at risk of being eaten by deer etc. and I'm not interested in feeding the wildlife! If I do manage to find a "safe" place outside to put them in the ground, I still have to wait a while to do that because I can't take the thought of my babies freezing to death!