Shell fava beans (you will have about 2 cups). Boil beans in salted water 2 minutes, then rinse with cold water until cool.
Peel tough skin from each bean by tearing it open at its round end and popping out the bean.
Spread crackers with a thin layer of ricotta and top with favas and mint. Sprinkle with salt and drizzle with oil.
Make ahead: Peeled fava beans, up to 1 day, covered and chilled.
Note: Nutritional analysis is per cracker (if using homemade).