Preheat your oven to 220°C/200°C fan/gas mark 7.

Chop the potatoes into 2cm wide wedges (no need to peel). 

Pop the wedges onto a large baking tray. Drizzle with oil, sprinkle over the black sesame seeds, season with salt and pepper, then toss to coat. Spread out in a single layer. TIP: Use two baking trays if necessary. 

When the oven is hot, roast on the top shelf until golden, 25-35 mins. Turn halfway through.

Meanwhile, remove the beef from the packaging. Place in an ovenproof dish along with the juices and cover loosely with foil. Roast on the middle shelf of your oven for 25-30 mins. 

Meanwhile, trim the pak choi, then separate the leaves. Cut each leaf in half lengthways down the middle.

Trim and thinly slice the spring onion. Peel and grate the garlic (or use a garlic press).

When the wedges have 10 mins remaining, heat a drizzle of oil in a large frying pan on high heat.

Once hot, add the pak choi and sugar snap peas. Stir-fry until just soft, 4-5 mins.

Stir in the garlic and soy sauce. Cook until fragrant, 1 min, then remove from the heat and cover to keep warm.

Once the beef is cooked, remove from the oven, reserve 1 tbsp of cooking juices per person, then discard the foil and any remaining cooking juices.

Use two forks to shred the beef as finely as you can. IMPORTANT: Ensure the beef is piping hot throughout.

Stir in the teriyaki sauce and reserved cooking juices. Season with salt and pepper.

Place the bao buns on a plate, sprinkle with a little water and microwave, 800W: 1 min / 900W: 45 secs / 1000W: 30 secs.

If you don't have a microwave, place the bao buns onto a large sheet of foil. Sprinkle with a little water, then fold the foil, sealing on all sides to create a parcel. Bake on the middle shelf until warm and fluffy, 2-3 mins.

Transfer the warmed bao buns to your plates and spread on the mayonnaise (see pantry for amount), then fill with the teriyaki beef. Sprinkle over the spring onion.

Serve the sesame wedges and soy greens alongside. 

Enjoy!