FOR AIOLI: Macerate garlic, oil and cilantro with mortar and pestle or crush with rolling pin.
Combine the crush with mayonnaise and whisk till smooth.
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FOR ONION RINGS: Preheat oven to 425 Deg or 200 deg C.
Line a baking tray with oil sprayed aluminum foil/oven proof parchment paper.
Mix all ingredients of batter and keep aside for 5 mins for batter to thicken up.
Dip onion ring in batter with a fork. Shake off excess batter. Dip in breadcrumbs with another fork. Coat it thoroughly.
Arrange rings on tray and bake in oven for 8 mins on one side and then flip them over and bake for another 6-8 mins.
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FOR PATTY: Dissolve flax seed powder in 6 tbsp water and leave it to rest for 5 minutes.
In food processor, grind coarsely garbanzo beans, carrots, spinach, all masala powders, salt, pepper powder, garlic, pani-puri concentrate and flax meal. Remove to a bowl.
Chop capsicum/sweet peppers finely. Add them to the chickpea mixture.
Slice spring onions thinly and add it to the mixture. Whisk well.
Add breadcrumbs and mix well. If mixture seems loose, add more breadcrumbs.
Refrigerate for 15-20 minutes to firm them up.
Make thick patties and drizzle with breadcrumbs both sides.
Heat olive oil in shallow fry pan. Shallow fry patties both sides till golden brown on med low flame flipping carefully while frying these tender patties.
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ASSEMBLE THE BURGER:
Very lightly toast the burger or ciabatta buns in preheated oven or heated skillet.
Marinate with salt, pepper, and garlic powder.
Roast zucchini and sweet peppers in preheated oven (180 deg c) for 20-25 minutes.
On burger bottom half, stack spinach, roasted peppers and zucchini, and onion rings.
Top it with cilantro aioli, and chickpea patti.
Top it with remaining zucchini, onion rings, spinach, and chipotle mayonnaise or mix plain mayonnaise with hot red chili sauce.