Zucchini Pasta Sauce

It's zucchini season at our house and after making zucchini slice, zucchini loaf, BBQ zucchini etc... and giving some away we still had more that we could possibly eat.
After some research I thought it was worth turning them into pasta sauce (we eat a lot of this over the year) with some locally grown tomatoes, onions, garlic and rosemary from our garden.
I used a recipe a friend told me about last year from Stephanie Alexander where the ingredients are reduced and concentrated by roasting them in the oven first, then blending them up and heating to boiling, putting in sterilised containers etc...
Enjoy the photos!