Makes 6 tacos 1/4 cup thinly sliced green onions 1/4 cup chopped fresh cilantro 3 tablespoons fat-free mayonnaise 3 tablespoons reduced-fat sour cream 1 1/2 teaspoons fresh lime juice 1/4 teaspoon salt 1/4 teaspoon pepper 1 garlic clove, minced Beans: 1 can black beans, drained and rinsed 1/4 cup diced red onion 1/3 cup taco cheese blend 1 teaspoon cumin 1 teaspoon cayenne 1 garlic clove, minced 1 1/2 teaspoons fresh lime juiceSalt and pepper Slaw: 2 cups red cab