Prepare the beans by rinsing the canned chickpeas and red kidney beans thoroughly in a fine-mesh sieve until the water runs clear.
If using frozen edamame, thaw them by placing them in a bowl of warm water for 5 minutes, then drain and pat dry.
In a small glass jar or mixing bowl, whisk together the fresh lemon juice, apple cider vinegar, Dijon mustard, dried oregano, sea salt, and black pepper to create the vinaigrette.
Finely dice the English cucumber and red bell pepper into uniform, bite-sized pieces.
In a large mixing bowl, combine the edamame, chickpeas, kidney beans, cucumber, and bell pepper.
Add the nutritional yeast and hemp hearts to the bowl, then pour the vinaigrette over the top.
Gently fold all ingredients together until the beans and vegetables are evenly coated in the dressing and the nutritional yeast has dissolved into a creamy coating.
Garnish with freshly chopped parsley and serve immediately, or let it chill in the refrigerator for 30 minutes to allow the flavors to meld.