Since Olive Garden won't give out the recipe, here's the closest one to the real thing! This recipe calls for a Kitchen-Aid mixer with the paddle attachment, but I'm sure you could use something similar.
From Food Network magazine.
Perfect for a teething baby! These contain NO wheat or eggs. You do not need to add any sugar or salt; these are not necessary for a baby. I don't know how much this yields; depends on how big you make the biscuits. Recipe from wholesomebabyfood.com