Black Bean Burgers

So this is by no means a substitute for a good beef hamburger, but not a bad sandwich for Meatless Mondays. Ingredients1/2 medium yellow onion, roughly chopped1 tablespoon chopped garlic2 (15-ounce) cans black beans, rinsed and drained, divided2 tablespoons freshly chopped cilantro leaves2 teaspoons freshly chopped parsley leaves1 egg1/2 teaspoon red pepper flakes1/2 cup bread…