If it is one of the Jiffy greenhouses with the lid on it, the lid needs to come off as soon as they sprout. You can try to pot up the seedlings and grow them in a window, but beans and squash grow very large very quickly. When is your last frost date? Honestly, I would be tempted to just wait and start over later.

Please check out the FAQ on this forum because you are going to be surprised at what you find. You can start seeds now outside, in containers.

Thanks for getting back to me. I think my last frost date is 3/30 to 4/30 which gives these beasts another good month of cooking off, at least. I think your original assessment is correct and that I should just start over in a few weeks. Live and learn.

Did you get a chance to check out this forum?

I think you want the growing from seed forum. This one is about planting seeds outside in the winter, not starting flats inside. That said, gardenluv is right, take the lid off or you'll fry the sprouts. Also, beans and squash do quite well here when direct sown into the garden because they grow very quickly.

Caryl