Combine first 6 ingredients. Top each slice of toast with 1/2 cup of vegetable mixture. Place slices on baking sheet. In a small saucepan combine cheese, pepper, and 2 Tablespoons water. Cook and stir till cheese is melted. Spoon over sandwiches. Broil 4-inches from heat for 5 minutes or till cheese is bubbly. Transfer to serving plates. Top with sprouts.