Prepare the Black Beans: Spread the drained, rinsed, and patted dry black beans over a clean towel to absorb any excess moisture.

Sauté Vegetables: In a skillet, heat 1 tablespoon of olive oil over medium heat. Add the diced yellow onion and red bell pepper, and sauté for 5-6 minutes or until softened. Stir in minced garlic and cook for an additional 30 seconds.

Combine Ingredients: In a large mixing bowl, combine cooled sautéed vegetables with black beans, oats, panko, egg, soy sauce, lime juice, and spices. Mix thoroughly, adjusting moisture as needed.

Form the Patties: Divide the mixture into 6 portions and shape into 3.5-inch patties. Refrigerate for 20 minutes to firm up.

Cook the Patties: In the skillet, heat the remaining tablespoon of olive oil. Cook the patties for 4-5 minutes on each side until golden brown and cooked through.

Serve Your Burgers: Toast buns, layer with mayonnaise, lettuce, the cooked patty, sliced tomato, and onion. Serve immediately.