1Preheat an outdoor grill for high heat and lightly oil the grate. Generously grease a sheet of aluminum foil with oil.
2Bring barley and water to a boil in a saucepan. Cover, reduce heat to low, and simmer until the barley is tender, 10 to 15 minutes.
3Mash black beans with a fork in a large bowl until thick and pasty. Stir barley, Cheddar cheese, mushrooms, onion, red bell pepper, parsley, eggs, garlic, salt, and black pepper into mashed black beans. Mix enough bread crumbs into bean mixture to form a sticky batter that holds together.
4Divide batter into 4 to 6 patties; place on prepared aluminum foil.
5Grill patties on the aluminum foil for about 8 minutes on each side.
Footnotes
Cook's Note:
These can also be cooked in a 375 degree F (190 degrees C) oven on an oiled baking sheet. Bake for about 10 minutes on each side.