Mushroom & Rice Burger | Pick Up Limes

Ingredients

• 2 Tbsp ground flaxseeds
• ¼ cup water
• 1 Tbsp vegetable oil
• 2 medium onion
• 2 garlic clove
• 4.94 oz button mushrooms
• ⅓ cup raw walnuts
• 2 Tbsp reduced-sodium soy sauce
• ½ Tbsp ground cumin
• ground coriander
• 1½ cup cooked brown lentils
• 1 cup cooked brown rice
• 1 cup bread crumbs
• 1 Tbsp nutritional yeast flakes
• 1 Tbsp ketchup
• 1 pinch ground black pepper
• 6 burger bun
• 1 cup arugula
• 2 avocado
• 2 medium tomato