• Preheat your oven to 240°C/220°C fan/gas mark 9.
• Chop the potatoes into 2cm chunks.
• Pop the potatoes onto a large (lined) baking tray. Drizzle with oil, season well with salt and pepper. 
• Toss to coat and spread out in a single layer. 
• When the oven is hot, bake on the top shelf until golden, 25-30 mins. Turn halfway through.

TIP: Use two baking trays if necessary.

• Thinly slice the beef and season with salt, pepper, ras-el-hanout and a drizzle of oil.
• Place a large pan over high heat with a drizzle of oil.
• Fry the beef until browned, 2-3 mins. IMPORTANT: Wash hands and equipment after handling raw meat and its packaging. Meat is safe to eat when the outside is browned.
• Once cooked,remove from the pan.

• Meanwhile, drain and rinse the kidney beans in a sieve.
• Chop the tomato into 2cm chunks.
• Halve, peel and chop the onion into small pieces.
• Mix the onion and tomato in a bowl with oil. Season to taste with salt and pepper and set aside.

• Return the pan to medium-high heat with a drizzle of oil.
• Once hot, add the beans and harissa paste.
• Fry until warmed through, stirring regularly, 3-4 mins.
• Mash with a fork and season well with salt and pepper.

• Pop the tortillas into the oven to warm, 1-2 mins.
• Mix the chilli flakes (use less if you don't like spice) and yoghurt together in a small bowl.

• Thinly slice the beef widthways.
• To assemble your tacos, your warmed tortillas between plates. 
• Top with the beef, beans, tomato, onion and a dollop of chilli yoghurt.
• Finish with a drizzle of sweet chilli sauce.
• Serve the beef tacos with the potatoes alongside.