Cooking : Black Bean Rice Burgers

Ingredients
1 (15 ounce) can black beans, rinsed and drained
1 cup cooked brown rice
1 small onion, finely chopped
1 egg, lightly beaten
6 tablespoons salsa, divided
1/4 cup reduced-fat sour cream
4 lettuce leaves
4 slices reduced-fat Cheddar cheese
4 hamburger buns, split

Directions
In a large bowl, mash beans with a fork. Add the rice, onion, egg and 2 tablespoons salsa; mix well. Drop by 1/2 cupfuls into a large nonstick skillet coated with nonstick cooking spray. Flatten to 1/2-in. thickness. Cook over medium heat for 4-5 minutes on each side or until firm and browned.
In a small bowl, combine sour cream and remaining salsa. Place a lettuce leaf, burger, sour cream mixture and slice of cheese on bun.