Step 1 Spray a heavy-based pan with cooking oil. Cook onion and celery over medium-low heat, stirring occasionally for 6–7 minutes. Add taco seasoning, stirring for 1–2 minutes.

Step 2 Add mince, stirring with a wooden spoon, for 5 minutes, until browned. Add tomatoes and kidney beans. Bring to the boil, reduce heat to low and simmer, stirring frequently, for 10 minutes, or until thick.

Step 3 Serve mince mixture with taco shells, lettuce, carrot and yoghurt.