Walnut "Bean" Burgers

You'll never look at a burger the same way again after tasting this unique twist on the American classic.

Walnut “Bean” Burgers

You’ll never look at a burger the same way again after tasting this unique twist on the American classic.

-Recipe Courtesy of the California Walnut Board, walnuts.org

Walnut Bean Burger

These Walnut “Bean” Burgers are delicious fried or broiled, with or without some cheese melted on top. Try serving them with thick slices of sweet red bell pepper or very ripe tomato. Or, just put them on a bun and serve with your favorite burger condiments.

Although the recipe calls for lentils, you can try yellow split peas as well for a lovely and sturdy variation. The split peas will need a little more water (up to 2 1/2 cups) and more cooking time, but are a really nice option.

The burgers can be made up to several days in advance and stored in the refrigerator until just before cooking. Uncooked burgers can be individually wrapped and frozen – just defrost before cooking.

Makes 4 to 6 Servings


3/4 cup uncooked brown or green lentils

1 1/2 cups water

2 tablespoons cider vinegar

1 tablespoon olive oil (plus more for frying the burgers, as needed)

1 cup finely minced onion

2 teaspoons minced garlic

1 teaspoon dry mustard

10 mushrooms (about 2-inch diameter), minced

3/4 teaspoon salt

1/2 pound baby spinach, finely minced (optional)

Freshly ground black pepper to taste

1/2 cup finely minced walnuts

1 cup whole wheat breadcrumbs (from toasted whole wheat sandwich bread)

Grated cheddar for melting on top (optional)


1. Place the lentils and water in a medium-small saucepan, and bring to a boil. Lower the eat to a simmer, partially cover, and cook for about 30 minutes, or until the lentils are soft and the water is completely absorbed. (Don’t worry about overcooking the lentils.  Soft is good in this recipe, and all the water should be gone.)

2. Transfer lentils to a medium-large bowl, add the vinegar, and mash with a fork or a potato masher. Set aside.

3. Place a medium-sized skillet over medium heat, and wait about a minute. Add 1 tablespoon olive oil, and swirl to coat the pan, then add the onion and sauté for about 5 minutes, or until the onion is translucent. Add all the remaining ingredients except the walnuts and bread crumbs, and sauté over medium heat for 5 to 10 minutes, or until all the vegetables are tender. Turn up the heat for the last minute or so, to let the moisture evaporate.

4. Stir the sautéed mixture into the lentils, along with the walnuts and bread crumbs. Mix thoroughly, then cover the bowl (or transfer to a container with a tight-fitting lid) and chill for at least an hour. 

5. Form 4-inch patties about 1 1/2 inches thick, and fry on both sides in a hot, oiled pan until heated through and crispy on the outside. You can also broil patties for 5 to 8 minutes on each side (until golden and crisp). Top with some grated cheese at the last minute, if desired, and let melt. 

6. Serve hot, with desired accoutrements.

For another twist on a classic, try this Spinach Lasagna with Walnut Pesto, or something else from our Recipe File.

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