This recipe was created with flexibility in mind, and is a great way to use up leftover ingredients.
Saute onion and garlic in olive oil over medium heat until soft. Stir in cumin, cook 1 minute. Stir in tomato paste, cook 30 seconds. Coarsely puree with beans and rice. Season with salt, pepper, and hot sauce. Stir in breadcrumbs. Form into patties. Heat oil in a nonstick skillet overmedium. Add patties, cook until heated through and browned. Serve with yogurt seasoned withsalt, pepper, lemon juice, and shredded mint.
Adjust the quantity of the ingredients depending on what you have, the flavors you like, and the number you're serving.