Open the avocado and using a spoon, scoop up the flesh and place it into a bowl.
Mash it with a fork and add the onion, tomato, chopped coriander and lime juice. Season with a pinch of sea salt. Mix well and set aside.
Heat the black beans (in the microwave or in a pot) and season with a pinch of sea salt. Set aside.
Preheat a grill or grill pan over medium-high heat.
Rub the oil onto the steak and season with salt. Place the steak on the grill and cook for about 4-6 minutes per side, or until cooked to your liking. Cooking time may vary depending on the thickness of the steak and your preference for doneness.
Once cooked, transfer the steak to a cutting board and let it rest for a few minutes. Then, slice the steak against the grain into thin strips.
Serve the steak with your guacamole, warm beans, an extra wedge of lime and wholemeal tortillas - ready to make yourself some carne asada tacos!
Notes
Need it gluten free? Swap the wholemeal tortillas for the more traditional corn tortillas.
Spice this up with some diced pickled jalapenos.
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat and serve.
The drained weights and calories of tinned ingredients will vary (sometimes significantly) from brand to brand. The drained weight of tinned black beans in a single serve of this recipe equates to approx. 60g (2oz) and 65 calories.