I have used similar ingredients to make black bean or red bean burgers. I like the flavor of the red beans (dark kidney beans) better than I do the black beans , and I used almond flour instead of regular flour. After I made the mix, I formed them into hamburger patties and then froze them; so all I had to do was get one out of the freezer when I wanted a veggie burger. It is much healthier than the processed ones they sell, and far less expensive, too.
These would be fine on a plant-based OMAD diet, and they make a really flavorful burger once you add the condiments, lettuce, tomato, onions, and dill pickles. I didn’t deep fry mine, I just cooked it in a little coconut oil in the skillet on the stove .