Drain and rinse the black beans, then place them in a food processor. Pulse until mostly smooth, leaving some chunks for texture.

In a large bowl, combine the processed beans with oat flour, pasta sauce, hot sauce, garlic powder, salt, and black pepper. Mix well until all the ingredients are evenly distributed.

Add cashews to the food processor. Pulse until you get a small, even crumb texture. Add the cashew crumbs to the bean mixture and mix thoroughly.

Form the mixture into burger patties using your hands. If the mixture is too wet or sticky, incorporate a little more oat flour until manageable.

Preheat a grill or stovetop skillet over medium-high heat. Cook each patty for about 5 to 7 minutes on each side or until they are golden brown and firm.