These seedlings are so young they do not have any fully open true leaves yet (the ones shown are seed "leaves). However, from what we can see, it looks like one of the cucurbit family of vegetables, i.e. cucumbers , cantaloupe, melons, pumpkin, squash, gourds or watermelon. So, probably edible.
After the first true leaves fully open, you'll be able to tell what you have. You're welcome to send us more photos when there are more mature leaves.