Shrimp Salad with Citrus and Avocado

Ingredients

• 12 ounces large peeled and deveined shrimp (preferably wild Gulf, if you can find them)
• 1 large grapefruit, peeled, pith and membrane removed, and sectioned
• 2 oranges, peeled, pith and membrane removed, and sectioned
• ¼ large red onion, thinly sliced
• 1 avocado, peeled, pitted, and thinly sliced
• 2 tablespoons chopped fresh cilantro
• 2 tablespoons each: orange juice concentrate, olive oil, and rice wine vinegar
• 6 cups baby greens
• Salt and ground black pepper