Heat oil in a large saucepan over high heat. Add mince. Cook, breaking up mince with a wooden spoon, for 5 minutes.

Add taco seasoning, beans, tomato and 1/2 cup cold water. Cook, stirring, for 3 to 4 minutes or until tomato has softened.

Place tortillas on board. Top with spinach, beef mixture, cheese and sour cream. Roll up to enclose filling. Serve.