Black Bean and Portabella Mushroom Burgers with Caramelized Onions Recipe

Ingredients

• For The Onions
• 3 tablespoons unsalted butter
• 2 yellow onions, thinly sliced
• 1 teaspoon granulated sugar
• ½ tsp kosher salt
• For The Burgers
• 2 tablespoons olive oil, divided
• 2 tablespoons finely chopped garlic
• 2 cups roughly chopped portabella mushrooms, gills and stem removed
• 15 oz. can of Green Valley Organics Black Beans, drained and rinsed
• 2 tablespoons Worcestershire Sauce
• 1 tablespoon soy sauce
• ½ lemon, juiced
• 1 tablespoon chia seeds
• 1 teaspoon kosher salt
• ½ teaspoon onion powder
• ¼ teaspoon dried harissa
• ¼ teaspoon black pepper
• 2 eggs, beaten
• 3/4 cup panko breadcrumbs
• 1/2 cup parmesan cheese, grated
• 6 slices of tomato
• 6 butter lettuce leaves
• 6 brioche burger buns