Heat Extra Melt Cheese Sauce via one of the methods located on the pouch.
In medium saucepan, add cheese sauce and remaining chimichurri sauce ingredients. Whisk to combine. Heat to 165°F. Hold warm.
To prepare tacos, place lettuce in each tortilla. Top each with 1 1/2 ounces steak slices and cheese shreds.
Drizzle chimichurri sauce over taco or serve sauce on side.