Smashburger's success could also be attributed to its ability to adapt to different customer preferences. They might offer a variety of burger toppings and side dishes to satisfy different tastes. Moreover, they could have been successful in partnering with suppliers to ensure a steady supply of fresh ingredients at a reasonable cost.
One key factor is innovation. Their special way of preparing burgers was new and interesting. It made their product stand out in a competitive market.
They probably did a good job with branding. Their name 'Smashburger' is catchy and easy to remember. And their logo and overall brand image are likely appealing to a wide range of customers. Also, they may have had effective advertising campaigns to spread the word about their brand.