Rinse and drain the black beans thoroughly and mash them in a large bowl until pasty.

Finely chop garlic and cilantro, then add to mashed beans along with cumin, salt, and hot sauce.

Stir in the oats until well combined to form a mixture that can be shaped into patties.

Divide the mixture into four equal portions and shape into burger patties.

Preheat a skillet over medium heat and lightly spray with oil. Cook the patties for about 7-8 minutes on each side until browned and cooked through.

Toast the buns lightly and assemble the burgers with sliced avocado and desired toppings.