You can now share on the plan. So - yes.
BUT! Take a look at the pricing, it might be a better use of your CS credits to get 4 individual meals.
Sample Platter = "Choice of four Proteins and a sampling of each of our Bases and Sauces, served with Vegetable Slaw and Four Non-Specialty Beverages."
I'm sure someone on here will correct me if I'm wrong. But this means you can't order alcoholic drinks or a pandora sunrise ('specialty' drink - which are super yummy) if you get the platter. But if your goal is the ability to try a little of everything and drinks kinda don't mater to you... go with that.