Please don't put fake plants. Can you have a carpenter make a cover for it and stain it the same? Failing that, fill it with tons of small ceramic coasters or objects that you can only see from above in colours that are picked up from the objects in the cabinet (yellow or blue?). It will be a surprise.

I'm trying to avoid the fake plants. I like your ideas, thanks

Definitely just a simple stained cover. You might even be able to make this yourself with a nice piece of finish plywood, cut to size and trimmed with a bit of molding over the cut edge. Any good lumber dealer can help with this. Then stain it as close as you can to the cabinet color and coat with polyurethane.

The only caveat is that if those are can lights, check the specs to make sure they can be in an enclosed space without hazard. If necessary, vent slots can be cut in the cover you make.