Black Bean Mushroom Burger (Vegan!)
An easy, healthy bean burger that's hearty and satisfying. Plus you can make them ahead of time to bake when ready!
Servings4 large patties
Ingredients
- 1 Tbsp. ground flax meal (+ 3 Tbsp. water)
- 1 small yellow onion
- 4 cloves garlic
- 8 oz. mushrooms
- 1 Tbsp. tamari
- 1 Tbsp. balsamic vinegar
- 15 oz. can black beans
- 1/2 cup oat flour
- 1/4 cup old-fashioned rolled oats
- 3 Tbsp. fresh parsley
- 1 tsp. dried oregano
- 1 tsp. dried basil
- 1/4 tsp. salt (or more to taste)
For serving (optional):
- Hamburger buns, lettuce, tomatoes, onion, avocado, ketchup, BBQ sauce, chipotle crema, mustard, pickles, etc.
Instructions
- Make the flax egg: In a small bowl, combine 1 Tbsp. flax with 3 Tbsp. water. Stir and set aside to thicken.
- Finely dice onion and mushrooms (wiped clean). Mince garlic.
- In a skillet over medium-high heat, sauté onion for 3-4 minutes. (I use 3 Tbsp. water/veggie broth for no-oil sauté method, adding more as needed.)
- Then add mushrooms, garlic, oregano, basil, and salt. Stir and sauté 7-8 minutes.
- Add tamari and balsamic vinegar. Stir and cook for 1 minute. Turn off heat.
- Rinse and drain black beans. Pat dry with paper towels to remove excess moisture.
- Place the black beans in a large bowl and lightly mash. Add flax egg, sautéed mushroom/onion mixture, oat flour, oats, and fresh parsley (chopped).
- Mix well to combine. Then shape into 4 large patties, or 5-6 smaller patties. Lightly wet your hands to prevent sticking if needed. (Note: They hold up best if you refrigerate the patties for at least an hour at this point, but they're fine baked right away too.)
- When ready to bake, preheat oven to 375°F (190°C). Line a baking sheet with parchment paper and place the patties on top.
- Bake for 15 minutes. Flip the burgers, then return to oven. Bake 15 more minutes. Remove from oven and let sit for 5-10 minutes to firm up. Then place on buns and add desired toppings.
Notes
Yield: This recipe makes 4 large patties or 5-6 small/medium patties.
Cheeseburger option: At the end of baking time, place a slice of vegan cheese on top of each patty and return to oven for 5 minutes to melt cheese. (Or place under the broiler for a minute, but watch carefully so they don't burn.)
Spices & seasoning: Change it up with cumin, smoked paprika, Italian seasoning, black pepper, etc. Or add 1 Tbsp. of vegan Worcestershire sauce for added flavor.
For gluten-free: Use GF oats & oat flour, and GF buns. (Or serve bun-free on fresh greens or lettuce wraps.)
Nutrition: Estimated nutritional content is calculated for the burger patties only, not buns and toppings.
Recipe originally published May 2012. Updated January 2024.
Nutrition Per Serving (Estimate)
Calories: 222 kcal | Carbohydrates: 38 g | Protein: 12 g | Fat: 3 g | Saturated Fat: 0.5 g | Polyunsaturated Fat: 1 g | Monounsaturated Fat: 1 g | Potassium: 675 mg | Fiber: 11 g | Sugar: 3 g | Vitamin A: 15 IU | Vitamin C: 7 mg | Calcium: 82 mg | Iron: 4 mg