Heat oil in a large frying pan over medium heat. Add onion. Cook, stirring, for 2 to 3 minutes or until softened. Increase heat to high. Add mince. Cook, breaking up with a wooden spoon, for 5 minutes or until browned

Add seasoning. Cook, stirring, for 1 minute or until fragrant. Stir in stock and tomato paste. Bring to the boil. Reduce heat to low. Simmer for 2 minutes or until slightly thickened

Heat tortillas following packet directions. Place tortillas on work bench. Top each with mince mixture, avocado, tomato and lettuce. Fold up to enclose filling. Serve

You could also double the amount of mince mixture and freeze for an easy makeahead meal later.