I actually tried this once on a carb-up day.
Here's what I did.
With each carb meal, I would have 5g of creatine, leucine, and glutamine. I was pretty glycogen depleted at that time.
I had a cheat meal, and then a couple of regular high-carb meals. I gained about 14 lbs, and it seemed to be mostly intracellular water and glycogen. I dropped about 2-3 lbs afterwards, but I am actually leaner by caliper method.
I would point out that I stay lower in carbohydrates, so some of the anabolic effects were likely due to the refeed itself. I don't have any doubt that my supplements helped things along, though.