Meanwhile, heat oven to 350°F. Spray 2-quart casserole with nonstick cooking spray. In medium saucepan, combine 1/2 cup of the milk, flour, salt, hot pepper sauce and garlic; stir with wire whisk until smooth. Stir in remaining 1 1/2 cups milk. Cook over medium heat until mixture boils and thickens, stirring frequently. Remove from heat. Add cheese; stir until melted.