Step 1

1 Cook pasta following packet instructions. Drain, but reserve ½ cup pasta water. Set aside. Preheat oven to 180°C.

Step 2

2 Spray a pan with oil and bring to a medium-high heat. Add chicken and cook, stirring, for 2-3 minutes, until browned. Set aside. Add spring onions, garlic, celery and mushrooms to the pan and cook for 2-3 minutes.

Step 3

3 Into a baking dish, place vege mixture along with cauliflower, rocket, chicken and pasta and mix gently to combine.

Step 4

4 In a pot, heat oil over medium-high. Add flour and cook, stirring, for 1 minute. Add milk. Bring to a gentle simmer and cook, stirring, until sauce thickens slightly. Add cheese and white pepper and stir through. Remove from heat and stir in pasta water.

Step 5

5 Stir sauce through pasta mixture in baking dish. Season with black pepper and sprinkle with remaining parmesan. Bake for 15 minutes, until bubbling and golden. Serve bake in bowls, garnished with herbs.