In a medium skillet add olive oil and heat over medium-high heat. Once heated, add ground beef and taco seasoning. Mix to combine and break apart the meat with a wooden spoon. Cook until browned.

In the same skillet, add black beans and toss to combine. Add half the lime juice and stir to combine. Take off the heat and set aside to cool.

In a large salad bowl, add lettuce, avocado, corn, tomatoes, shredded cheese, red onion, and remaining lime juice. Lightly toss together to combine.

Once the beef and black bean mixture reaches room temperature, add it into the salad bowl and mix to combine.

Garnish with chopped cilantro and serve with tortilla chips, salsa, and sour cream.