When is there too little to harvest?

My roommate and I planned fava beans to put nitrogen back into the soil.  One bean took a liking to it's particular spot in the backyard.  Now, we have 3 fava beans all that glorious fava bean green. The garden is singing a little louder for this.  Add this to my to-do list:  write a minimalist epic to the fava bean.

Alas, lunch didn't include fava beans but the garden's mint -- minty.