This is an easy combination to do yourself. All you have to do is order a bag of the fried chicken sliders and a side of the mozzarella sticks. Then put two of the sticks on each slider topped with a little bit of the side cup of marinara. Nuke it in your microwave at home if you want it to be extra melty and delicious.
It’s akin to turning your White Castle into an Italian feast! This also mimics a special they had a while back that featured a variation of this Secret Menu hack.