The ground beef and beans are a good combination in really almost anything. Here you can hardly taste the beans, but these burgers are so delicious and moist because of them. Serve topped with salsa and additional beans, or just ketchup and mustard.
1/2 cup cooked black beans
2 tbsp olive oil
1/2 tsp garlic powder
1/2 tsp cumin
Salt and black pepper, to taste
1 pound ground beef
Dijon mustard, for brushing
4 hamburger buns
Preheat the grill. In a medium bowl, mash the cooked black beans, 2 tablespoons of olive oil, garlic powder, and cumin with a potato masher or fork until very creamy. Gently mix the black bean mixture with the ground beef. Season the mixture liberally with salt and black pepper.
Divide the mixture into 4 equally portioned patties. Using a pastry brush, lightly coat the outside of the patties with the Dijon mustard. Lightly brush or spray the grill with oil and place the burgers on the hot grill. Cook the burgers on each side until they are cooked through and the edges are browned. (Note: don't flip too soon or they will fall apart.) Place the buns on the grill until nicely toasted.
Source: adapted from TenDollarDinners