Cheesy chicken and vegetable pasta

Method

• 1
  Cook pasta in a large saucepan of boiling, salted water following packet directions until tender. Drain.
• 2
  Meanwhile, melt margarine in a saucepan over medium heat. Add leek, garlic and mushrooms. Cook for 5 minutes or until vegetables are tender.
• 3
  Stir in flour. Cook, stirring, for 1 minute or until mixture is bubbling. Remove from heat. Gradually add milk, stirring, until smooth and combined. Place pan over medium-low heat. Bring to the boil, stirring constantly.
• 4
  Add broccoli and chicken. Cook, covered, for 4 minutes or until broccoli is just tender. Add cheese and pasta. Stir to combine. Serve.