Instructions

  1. In a bowl, mash beans with a fork; add the rice, onion, egg, and 2 tablespoons salsa; mix well.
  2. Season if needed with salt and pepper.
  3. Drop by 1/2 cupfuls into a large nonstick skillet coated with cooking spray.
  4. Flatten to 1/2-inch thickness; cook over medium heat for 4-5 minutes on each side or until firm and browned.
  5. In a small bowl, combine sour cream and remaining salsa; on bottom bun, place a lettuce leaf, burger, sour cream mixture and slice of cheese; cover with top bun.