Put lime juice, olive oil, garlic, salt and cayenne pepper in small jar, cover with lid and shake until well mixed
In big bowl, combine beans, corn, bell pepper, tomatoes, green onions, and cilantro.
Shake lime dressing and pour over salad
Stir everything together
Add avocados at the last moment so it doesn't get too soaked in the lime dressing.
Recipe Notes
This recipe was adapted from a recipe I found on allrecipes.com. I changed the amount of olive oil because it was too heavy in the original recipe. I also suggest adding the avocados at the very end.