Gather all ingredients.
Measure and prepare all ingredients.
Heat oil on skillet, medium heat.
Season beef with 2tbsp lime juice and 1tbsp chilli powder.
Mix thoroughly, then set aside.
Being to sauté red peppers and onion for 5 minutes.
Add beef to vegetables and cook for 5 minutes.
Combine beans, avocado, feta, cilantro, and the remaining lime juice and chilli powder.
Mix all together.
Remove everything from skillet once beef is cooked.
Prepare to serve.
Enjoy your meal!