Heat oil in a large pot on high heat. Add the chicken and cook for 5 mins until it starts to brown. Remove the chicken and set aside.

Add the onion, garlic and zucchini to the pot and cook for 2 mins before adding the passata, and Italian herbs. Fill the passata jar with water and add the water to the pot. Bring sauce to the boil, then reduce to a simmer.

Once simmering, add pasta and chicken to the sauce. Cover and cook for 15 mins or until pasta is cooked.

Remove from heat and stir through spinach and cheese.