Black Bean, Quinoa and Citrus Salad

for the salad:

black beans, drained and rinsed

red onion, minced

large grapefruits, divided into segments and chopped

large red bell pepper, diced

ears fresh corn, kernels chopped off’

uncooked quinoa

large (ripe but firm) avocado, diced

small bunch cilantro, minced

for the dressing:

juice of 3 limes

cumin

extra virgin olive oil

sea salt