South-of-the-border Lasagna Recipe

Ingredients

• 1 1/2 cups sour cream
• 1 1/2 cups salsa
• Vegetable cooking spray
• 6 cups cooked rice, divided
• 1 15- to 16-ounce can black beans, drained and rinsed
• 3 cups shredded cheddar cheese, divided
• 2 cups crushed tortilla chips