1Remove stem ends from tomatoes. Cut tomatoes crosswise in half. Arrange cut sides up in circle in microwavable pie plate, 10x1 1/2 inches, or microwavable dinner plate.
2Sprinkle salt and pepper over tomatoes. Cover with waxed paper and microwave on High 2 minutes; rotate pie plate 1/2 turn.
3Mix remaining ingredients; sprinkle over tomatoes. Re-cover and microwave about 2 minutes or until tomatoes are hot and cheese is melted.