Add the burgers ingredients into a food processor and pulse three or four times to obtain a crumbly mixture (do not over-process to avoid a mushy composition).
Shape the mixture into burger patties, line them in one layer onto the baking sheet and bake for 15 minutes, then flip upside down and bake for 15 more minutes.
Add the parsnip stripes onto the second baking sheet, drizzle with coconut oil, add the spices and mix to coat evenly.
Bake for 20 minutes, then remove and set aside.
Meanwhile, add the herbed guacamole ingredients into the food processor and pulse to obtain a creamy paste.
Assemble the burgers and serve warm, with parsnip fries.
Notes
To assemble: pickled red onion, baby spinach, whole wheat buns