Black Bean Salad

I love summer, not the endless heat, but that I can eat salads and not feel cold or empty - for some reason, salads do not work in the winter. Salads also off set the cupcakes...

1 large can black beans (RINSED) unrinsed beans is one of the main reasons they make you musical
1 medium mango diced
1 medium bell pepper diced (red, yellow or orange)
1 cup halved grape/cherry tomatoes
1 cup corn niblets - fresh, frozen or even better roasted...
1/2- 1 cup chopped cilantro
1/2-1 jalapeno minced (optional)
1 avocado, diced (optional)
1-2 limes, zest and juice
salt and pepper to taste
cumin or cayenne (optional)
1 head romaine lettuce chopped

Combine all ingredients, and serve over bed of lettuce with taco chips on the side if you wish.