These vegan lentil apple walnut veggie burgers are satisfying to eat. They are full of the soothing Zen goodness of lentils, mixed with crunchy good bits of apple.
Put lentils in a pot with 2 cups water. Simmer, uncovered, for 45 minutes or until water is absorbed and lentils are soft.
While lentils are cooking, chop or grate the carrots, celery, and optional mushrooms and add them in to the lentil pot. The pieces should be smaller than 1/4 inch.
Mix the ground flaxmeal with the 1/2 cup of warm water (temperature matters!) and let sit.
Chop or grate the apple.
When the lentils are cooked, add all of the other ingredients, including the flax gel. Stir gently but thoroughly, until all is well-mixed.
Shape the mixture into 12 patties on two cookie sheets. Each patty will use between 1/2 and 2/3 cup of the mixture. My cookie sheets are super-nonstick, but if yours are not you may want to line them with parchment paper before shaping the patties.