Preheat the oven to 375F, and spray a 9x13 casserole dish with some nonstick cooking spray.
Cut the 10 small biscuits into 6 pieces each (giving you 60 pieces of dough).
In a bowl, mix together the softened cream cheese, mayonnaise, sour cream, parmesan cheese, garlic, salt, and pepper. Stir well.
Chop up the artichokes and spinach, and stir them into the mixture. Finally, stir in the cooked, shredded chicken.
Place half of the dough pieces into the mixture and gently fold them in. Add in the remaining biscuit pieces and gently fold them in again.
Spoon the mixture into the casserole dish and spread it out evenly. Be sure to check that there are no clumps of biscuit pieces stuck together.
Bake it in the oven for 30 minutes, remove from oven, and sprinkle mozzarella cheese on top. Return it to the oven for 10 more minutes.
Let it cool slightly then divide it into 6 equal servings.