Prepare Black Beans: Drain and rinse one can of black beans under cool water until the liquid runs clear.

Sauté Onions and Garlic: In a medium skillet, heat two tablespoons of oil over medium heat. Add finely chopped onions and minced garlic, sautéing for about 3-4 minutes until soft.

Mash the Beans: In a large mixing bowl, mash the drained black beans with the sautéed onions and garlic until mostly smooth.

Combine Ingredients: Stir in half a cup of breadcrumbs, one beaten egg (or flaxseed mixture), a teaspoon of cumin, and a teaspoon of chili powder, mixing thoroughly.

Shape Patties: Divide the mixture into equal portions to form about six patties, each around 1 inch thick.

Cook Burgers: Heat another tablespoon of oil in the skillet over medium-high heat. Cook each patty for about 4-5 minutes per side until golden brown.

Serve: Transfer the patties to a plate lined with paper towels and assemble your burger with your favorite toppings.