Mexican steak with beans

Name: Mexican steak with beans
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Mexican, TexMex
Ingredients: 2 small sirloin or rump steaks, or 1 big; 2 tsp sunflower oil; 1 tsp chipotle paste (we used Discovery); about 2 whole roasted red pepper from a jar, quartered; 1 small ripe avocado stoned and chunkily diced; 1 lime cut into wedges; few coriander sprigs, leaves picked; few dollops soured cream; 1 onion chopped; 1 tbsp sunflower or vegetable oil; 2 tsp ground cumin; ½ tsp hot paprika plus a pinch extra (optional); 1 tbsp tomato purée; 2 tsp each chipotle paste, brown sugar and wine vinegar (red or white); 400g can black bean drained and rinsed; 400g can pinto or kidney bean drained and rinsed