Orzo Salad with Spicy Buttermilk Dressing

• 1 cup uncooked orzo
• 1 cup frozen whole-kernel corn, thawed and drained
• 12 cherry tomatoes, quartered
• 3 green onions, sliced
• 1 (15-ounce) can black beans, rinsed and drained
• 1/4 cup low-fat buttermilk
• 3 tablespoons chopped fresh cilantro, divided
• 3 tablespoons fresh lime juice
• 2 tablespoons light sour cream
• 2 tablespoons canola mayonnaise
• 1 teaspoon chili powder
• 1/2 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon ground red pepper
• 2 garlic cloves, crushed
• 1 peeled avocado, cut into 8 wedges
• 1 tablespoon chopped fresh parsley

Cook orzo according to package directions, omitting salt and fat. Drain and rinse; drain well. Place orzo, corn, and next 3 ingredients (through beans) in a large bowl; toss.

Combine buttermilk, 2 tablespoons cilantro, and next 8 ingredients (through garlic) in a small bowl, stirring well with a whisk. Drizzle over orzo mixture; toss. Top with avocado; garnish with remaining cilantro and parsley. 

Serves 4 (1 3/4 c.); 424 calories.

VERDICT:  I made this to use up a bit more buttermilk and the most recent batch of tomatoes from the garden.  A bit too spicy and a bit too liquid-y.  Dial back both, and it might improve.  Still, toss.