When I heard that Taco John's was testing out a new menu item in just three cities and that one of them is Sioux City, I immediately wanted to try it out! So, we headed to Taco John's to try their brand new "walking taco" style dish, which they are calling the Fritos Taco Mixers. Based on that trip and trying them with my tween, here's my full review: What is the Taco John's Frito Taco Mixer? The Taco John's Fritos Taco Mixer is a brand-new dish available only in three test markets (Sioux City, Iowa; Paducah, Kentucky; and Evansville, Indiana) as of Mid-November 2024. The Taco Mixers come in two varieties: regular and double beef. Both options are walking-taco style entrees consisting of Fritos corn chips, ground beef, cheese, lettuce, tomatoes, sour cream, and some of Taco John's iconic Potato Oles. Our thoughts on the Taco John's Frito Taco Mixers I ordered one of each variety of the Taco John's Fritos Taco Mixers from a Sioux City Taco John