- 2 (15-ounce) cans black beans, rinsed and drained
- 4 tablespoons vegetable oil, divided
- 1 medium onion, finely chopped (about 1 cup)
- 1 large poblano pepper, finely chopped (about 1 cup)
- 3 medium cloves garlic, minced
- 1 chipotle chili in adobo sauce, finely chopped, plus 1 teaspoon sauce
- 3/4 cup roasted cashews
- 1/2 cup finely crumbled feta or cotija cheese
- 2 tablespoons mayonnaise
- 1 whole egg
- 3/4 cup panko bread crumbs
- Kosher salt and freshly ground black pepper
- Adjust oven rack to center position and preheat oven to 350 F. Spread black beans in a single layer on a foil-lined rimmed baking sheet. Place in oven and roast until beans are mostly split open and outer skins are beginning to get crunchy, about 20 minutes. Remove from oven and allow to cool slightly.
- While beans roast, heat 2 tablespoons oil in a medium skillet over medium-high heat until shimmering. Add onion and poblano and cook, stirring frequently, until softened, about 5 minutes. Add garlic and cook, stirring constantly, until fragrant, about 2 minutes. Add chipotle chili and sauce and cook, stirring, until fragrant, about 30 seconds. Transfer mixture to a large bowl.
- Place cashews in the bowl of a food processor and pulse until chopped into pieces no larger than 1/3-inch, about 12 short pulses. Add to bowl with onions and peppers.
- When beans are slightly cooled, transfer to food processor. Add cheese. Pulse until beans are roughly chopped (the largest pieces should be about 1/3 of a full bean in size). Transfer to bowl with onion/pepper mixture. Add mayonnaise, egg, and bread crumbs and season with salt and pepper. Fold together gently but thoroughly with hands. Patty mixture can be stored in an airtight container in the refrigerator for up to three days at this stage.
- Preheat grill over medium high heat, cook burgers for 3 minutes, rotate 90 degrees, cook 3 minutes more, flip, cook 3 minutes more, rotate 90 degrees cook 3 minutes more (total 12 minutes) add cheese after flipping
- These where a bit spicy. I'd be inclined to leave out the pepper for a more burger like taste.