Yes, you absolutely need to! Change the toppings to whatever works best for you (for me, personally, sauce, cheese and a bit of oregano...absolute perfection!), but it's such a simple concept. Make fries (I love homemade fries, but frozen works for speeds' sake), add sauce (pizza or marinara, pizza is a slightly better choice here), add mozzarella (and if you're feeling adventurous, a bit of romano), add toppings here, bake in oven for 5-7 minutes and boom. Perfection.
There are millions of recipes online for various different variations of pizza fries, too, you just need to find what works best for you...but trust me...they're amazing.
End result usually ends up looking something like this (quick search engine grab):