Peel and cube the sweet potatoes. In a non-stick pan, heat ½ tablespoon of olive oil over medium heat. Add sweet potatoes and Cajun spice mix, stirring for 10-12 minutes until browned and fork-tender.

Transfer cooked sweet potatoes to a blender along with drained chickpeas, garlic, scallions, cilantro, tomato puree, miso paste, and cayenne pepper. Pulse until combined but chunky.

Shape the mixture into four equal burger patties, pressing firmly to ensure they hold together.

In the same pan, heat 1 tablespoon of olive oil over medium heat. Cook the burger patties for about 2 minutes on each side until golden brown.

Transfer the cooked burgers to toasted burger buns and serve with your favorite toppings.