Ingredients

• 3 red onions, diced
• 3 cloves garlic, crushed
• pinch of chilli flakes (adjust to desired spiciness)
• 2 tbsp smoked paprika, divided
• 2 tbsp ground coriander seeds, divided
• 3 tbsp cumin, divided
• 1 can crushed tomatoes
• 2 tins black beans, drained
• 1 kg (2.2 lbs) beef rump, cut into strips
• 2 tbsp olive oil, plus more for frying
• salt, to taste
• 4 tomatoes, diced
• bunch of coriander, finely diced
• zest and juice of 2 limes
• 16 flour tortillas
• 500g (1.1 lbs) mozzarella cheese, grated
• 1/2 head iceberg lettuce, finely sliced