Cook pasta according to package directions, omitting salt and fat. Add broccoli during the last minute of cooking; cook for 1 minute. Drain.
Combine milk and next 5 ingredients (through salt) in a medium bowl, stirring with a whisk until smooth.
Heat a large skillet over medium-high heat. Add bacon; cook 4 minutes or until crisp. Add butter to pan; swirl until butter melts. Add milk mixture to pan; bring to a boil. Cook 1 minute, stirring frequently. Stir in cheese. Add pasta mixture to pan, stirring to coat.
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