Prepare the Grands Biscuits by separating them. Flatten each biscuit slightly and stuff with a portion of mozzarella, minced garlic, and chopped parsley. Carefully form them back into balls, ensuring the filling is sealed inside. Airfry the stuffed biscuit bombs at 330°F for 7 minutes. While they cook, melt butter and mix it with minced garlic to create a garlic butter mixture. After airfrying, brush the bombs generously with the garlic butter. Optionally, sprinkle with grated Parmesan cheese. Serve hot, dipped in marinara sauce.