Thinly slice the cabbage with a sharp knife or mandoline. Thinly slice the spring onion, keeping the white and green parts separate. Cut the tomato into 1cm chunks. Crush or finely chop 2 garlic cloves.
Step 2 — Stir-fry cabbage
Melt 10g butter and 2 tsp vegetable oil in a medium deep frypan over medium-high heat. Stir-fry the cabbage for 2-3 mins until just tender (see Kitchen 101). Season with salt and pepper, then remove from the pan.
Step 3 — Brown beef mince
Heat 2 tsp vegetable oil in the same pan over high heat. Stir-fry the beef mince, breaking up the lumps with a spoon, for 3-4 mins until browned. Add the masala seasoning, garlic and white part of the spring onion, then stir-fry for 1 min or until fragrant.
Step 4 — Finish stir-fry
Add the cabbage to the mince mixture and stir-fry for 1-2 mins until warmed through. Taste, then season with salt and pepper.
Step 5 — Serve up
Divide the beef stir-fry among bowls, scatter over the tomato and remaining spring onion. Drizzle with the yoghurt and enjoy!
Step 6 — Kitchen 101
Fast and hot is key when stir-frying! Make sure you cook over the heat indicated, stirring constantly so everything is cooked evenly. We've used a deep frypan, but you can use a wok if you have one.