Attach slicing disc to KitchenAid® 7 Cup Food Processor. Cut onion to fit feed tube and slice on high speed. Heat 2 teaspoons oil in 10-inch skillet over medium high heat. Add sliced onions and garlic, and cook until fragrant and beginning to brown. Remove from heat and let cool slightly.

Remove slicing disc from Food Processor and attach multipurpose blade. Add garbanzo beans, tahini and lemon juice to work bowl and process on high until smooth. Add cooked onions and garlic and pulse 4 to 5 times. Transfer mixture to large bowl. Add all remaining ingredients and stir to combine.

Using a ½-cup measure, form burger mixture into balls and place on parchment lined baking sheet. Place in refrigerator for 30 minutes, then press into ½-inch patties.

Heat remaining olive oil, ½ tablespoon at a time in large skillet over medium heat. Working in batches, cook burgers 3 to 4 minutes per side, until golden. Repeat with remaining patties.

Serve immediately on buns or in lettuce cups with any topping you like.