In a large bowl, mash chickpeas with a potato masher. Mix in oats, olives or pickles, diced carrot, and scallions. In a separate bowl, blend together miso, soy sauce (or tamari), mustard, and maple syrup and add the blend to the chickpea mixture. Form the mixture into palm-sized patties and dredge them in cornmeal and salt.
Heat 3 tablespoons of safflower oil over medium heat. Fry each patty on both sides for 5 minutes. When oil is gone, re-oil the pan for the next round of patties. On the bottom bun place the lettuce, then top with the patty, pickle slices, tomato and onion. Spread tahini on top bun and place bun on top of burger. You can also serve the burger without a bun.
Tip: This burger mixture freezes well for later use.