The beetroot avocado burger is a vegan option that features a beetroot patty. The patty is made from beets and is hearty and satisfying. The burger also includes avocado, which adds a creamy and refreshing taste that complements the earthy flavors of the beetroot. Reviews rave about the unique taste of the beetroot patty and how it leaves you craving more. Overall, this burger is a delicious and nourishing option that is sure to satisfy your hunger.