Black Beans & Avocado on Quinoa

Rinse beans; drain. In a large saucepan, combine beans and 3 cups of the water. Bring to boiling; reduce heat. Simmer, uncovered, for 10 minutes. Remove from heat. Cover and let stand for 1 hour. Drain and rinse beans.

Lightly coat an unheated 3- or 3 1/2-quart slow cooker with cooking spray (see Tip). Place beans in cooker. Stir in the remaining 2 cups water, the onion, half of the tomatoes and the cumin.

Cover and cook on low-heat setting for 10 hours or on high-heat setting for 5 hours or until beans are soft. Stir in the remaining tomatoes, the 1/2 cup cilantro, the lime juice, 1 tablespoon oil and the 1/2 teaspoon salt. Let stand at least 15 minutes to develop flavors.

Before serving, toss the quinoa with the 1/4 cup cilantro, 1 tablespoon oil and the 1/4 teaspoon salt. Divide spinach among six serving plates. Spoon the quinoa mixture over the spinach. Spoon bean mixture over the quinoa. Top with avocado and serve with lime wedges.