01 - In a large mixing bowl, combine mashed sweet potato, cassava flour, olive oil, and salt. Mix thoroughly by hand or with a spatula until a slightly sticky dough forms. Add warm water one tablespoon at a time only if needed to help the dough bind together.
02 - Divide the dough into 8 equal portions. Roll each portion between your palms to form smooth, round balls. Set aside on a clean surface.
03 - Place one dough ball between two sheets of parchment paper. Press flat with your palms, then use a rolling pin to roll out to approximately ⅛-inch thickness. Repeat with remaining dough balls, keeping rolled tortillas stacked between parchment paper.
04 - Place a nonstick skillet or cast iron pan over medium-high heat. Allow the pan to preheat for 2-3 minutes until hot but not smoking.
05 - Carefully transfer one tortilla to the hot pan. Cook for 1-2 minutes on the first side until lightly browned with dark spots appear. Flip and cook for an additional 1-2 minutes on the second side. Transfer cooked tortilla to a plate and cover with a clean kitchen towel to keep warm and soft. Repeat with remaining tortillas.
06 - Serve immediately while warm. Fill with your favorite taco ingredients, use as wraps, or enjoy as a side dish.