Whisk together the orange juice, vinegar, cumin, oregano, garlic, salt, and pepper until well-combined.
Juice of 1 orange, 2 tablespoons white wine vinegar or fruit-flavored white balsamic vinegar, 1 teaspoon ground cumin, 1 teaspoon dried oregano, 1 teaspoon garlic, ¼ teaspoon kosher salt, ¼ teaspoon freshly ground black pepper
While continuing to whisk, add the olive oil in a steady stream.
2 tablespoons olive oil
In a large bowl, gently mix together the barley, black beans, corn, scallions, red pepper, and cilantro.
1 cup cooked barley, 15 ounces black beans, 1 cup frozen corn kernels, 2 scallions, 1 small red bell pepper, ½ cup fresh cilantro
Add the dressing and toss to combine.
Before serving, add the avocado and garnish with lime wedges.
1 medium avocado, 1 lime