Preheat the oven to 325 degrees F and line several baking sheets with parchment paper.
Place the shredded cheese and softened butter in the bowl of your electric mixer. Beat on medium until mostly smooth.
Add the packet of Old El Paso Taco Seasoning to the cheese mixture, then turn the mixer on low and slowly add the flour until incorporated. Scrape the bottom of the bowl with a spatula, then beat again for an even texture.
Take 1 1/2 teaspoon of dough at a time and roll it out into a rope about 10-12 inches long. Roll a second rope and lay them next to each other on a baking sheet. Gently twist the ends in opposite directions to create a twisted rope. Then cut the rope in half to create two 5- to 6-inch ropes. Repeat with the remaining dough.
Bake the spicy cheese straws for 15-20 minutes until slightly golden, then cool completely on the baking sheets.
While the spicy cheese straws are baking, scoop the flesh of the avocados into a blender. Add the jalapenos in their juices, lime juice, and salt. Puree until smooth.
Once cool, dip the spicy cheese straws in the avocado dip and enjoy!