Place cream cheese on microwave-safe plate. Microwave on HIGH, 30-40 seconds until softened. Remove cream cheese from microwave; set aside. Place broccoli in 2-quart microwave-safe bowl. Place bowl in microwave; select Vegetables from menu panel. Select 2; push Start. When oven signals, remove from microwave.
Add cream cheese, 1-1/4 cups cheese, onion, garlic and hot pepper sauce to broccoli in bowl. Mix thoroughly until well combined. Spread mixture into 1-quart microwave-safe casserole. Sprinkle remaining cheese over top.
Microwave on HIGH, 4-5 minutes or until cheese is melted. Remove from microwave. Cool slightly; serve with crackers.
You can soften cream cheese using the Soften/Melt feature on the microwave. Place cream cheese on microwave-safe dish.