Heat oven to 375° F. Spray 8-inch square (2-quart) glass baking dish with cooking spray. In bowl, toss shrimp, scallops and pepper. Spray mixture with butter-flavor cooking spray. In nonstick skillet over medium-high heat, cook shrimp mixture 2 minutes, stirring frequently. Remove from heat. In large bowl, stir soup and half-and-half with whisk. Add shrimp mixture, potato blend, basil and salt; toss gently. Pour mixture into baking dish.