Beginner Gardening: planting onion seed, 1 by MomsterGina

MomsterGina wrote:
I almost hate to post this because it was a stupid thing.. but anyway...

We were running out of places to start seed indoors so we used a "flat" which was really just a fairly shallow, heart shaped baking pan. Now I have 22 germinated seedlings that have popped up (Yellow Parma from SeedSavers I think) and NO idea when to transplant. They're really pretty close together in the pan. Like two inches or so apart from the next.

I'm in Norcal and my things outside are doing well and sprouting. Should I literally just take a butter knife to the pan and pull them out, or should I wait for them to grow more tops first?

(In the pic you can see the pan in the bottom right, before they came up)