Put chickpeas, eggs, garlic, and oats in a blender, and blend into a combined mixture (approx. 60 sec.).
Shape the mixture into one to two patties.
Fry in a pan until the patties are golden brown.
Coat the portobello mushrooms in the blended oats (flour).
Bake the portobello mushrooms in the oven at 180 degrees Celsius (356 degrees Fahrenheit) for 20 minutes.
Make a curry dressing from Greek yogurt, honey, and curry, and season with salt and pepper.
Assemble the burger with portobello mushroom, vegetables, patty, and curry dressing.