Follow the instructions on the package to prepare the Actual Green Burgers.
To make the hollandaise, combine the avocado, vegan mayonnaise, and lemon juice in a mixer and blend until smooth. Salt and pepper to taste. Set aside.
Sauté the mushrooms in olive oil in a hot skillet for several minutes until browned, add the spinach until wilted, set aside.
Toast the bottom half of the brioche buns, plate, and top with warm mushroom and spinach mixture.
In the same pan you used for the mushrooms and spinach, crack eggs into warm olive oil and cook until whites are set and look perfectly sunny side up - about 2-3 min.
Place the eggs on top of the mushroom & spinach mixture on the brioche, top with avocado hollandaise and cracked or cayenne pepper. Enjoy!