BAKE THE BEANS: Preheat oven to 360°F (180°C). Drain and rinse 2 cans (15 ounces each) black beans.Spread beans on a baking tray. Bake for 20 minutes
MAKE FLAVOR BASE: Heat 2 tablespoons olive oil in a skillet. Sauté 1 onion (chopped) for 3 minutes. Add: 3 cloves garlic (grated), 1 or more jalapeños (chopped), 4 tablespoons tomato paste, 1 teaspoon cumin, 1 teaspoon chipotle powder. Season with 1 teaspoon salt andblack pepper to taste. Sauté for 2 more minutes, stirring.
MAKE MIXTURE: Combine half the baked beans and the flavor base in a food processor.Add 3 tablespoons balsamic vinegar, 1 large egg, and ½ cup breadcrumbs.Pulse briefly, avoiding over-blending.Transfer mixture to a mixing bowl. Stir in remaining beans and ¾ cup feta cheese (crumbled).
SHAPE PATTIES: Shape 4 to 6 patties with your hands or with a burger press.Arrange the patties on a plate or baking tray.
PAN-FRY: Heat some olive oil on a cast-iron or non-stick skillet. Cook the patties on medium-low heat for 4 to 5 minutes per side until a thin, charred crust forms.AIR-FRY: Brush the patties with olive oil on both sides. Air-fry at 400°F or 200°C for 12 – 15 minutes.GRILL: Heat your grill to 400°F or 200°C. Grease the grill grates well. Also, brush the patties with oil. Grill for 5 to 8 minutes on the first side, turn gently, and grill for 3 to 5 more minutes.OVEN-BAKE: Arrange patties on a baking tray lined with parchment paper. Brush the with olive oil on both sides. Bake in a preheated oven at 400°F or 200°C for 20 – 25 minutes.
MAKE BURGERS: Fix yourself a burger with sriracha mayo (mayo + sriracha sauce to taste) or chipotle sauce, Romaine lettuce, guacamole or avocado slices, quick pickled onions, or a slice of tomato.