Couscous Bake

Ingredients

• 1 1/2 cups water
• 1/4 teaspoon garlic salt
• 1 cup couscous, uncooked
• 1 (15 ounce) can black beans, drained
• 1 cup frozen whole kernel corn, thawed
• 1 (8 ounce) can sliced water chestnuts, drained
• 1 (7 ounce) jar roasted red peppers, drained and cut into strips
• 1 (8 ounce) carton sour cream
• 2 tablespoons red wine vinegar
• 1 teaspoon cumin
• 1/4 teaspoon salt
• 5 green onions, sliced
• 1 (10 ounce) package fresh spinach