I cooked stuffing, covered it, and forgot about it. It has been sitting in the kitchen for about 7 hours. There's no meat or eggs. Is it safe?

Modernist Cuisine says 4 hours is the safe zone, but it's not a hard and fast rule and depends on what type of food we're talking about. Since everything was cooked and there aren't eggs or meat, I think you could be okay, but smell it to check. Hope it all turns out! https://food52.com/blog/4964-modernist-cuisine-s-5-tips-for-a-healthy-thanksgiving-keep-clean-avoid-the-danger-zone