Finely chop the onion. Crush or finely chop the garlic. Finely chop the parsley, including the stems. Coarsely grate the zucchini. Bring a medium saucepan of salted water to the boil for the pasta.
Step 2 — Cook zucchini
Heat 1 tbs olive oil in a large deep frypan over medium heat. Cook the onion, garlic and zucchini, stirring regularly, for 5 mins or until the onion and zucchini are softened. Season with salt and pepper.
Step 3 — Start sauce
Increase the heat to high. Add the pork mince to the zucchini mixture and cook, breaking up the lumps with a spoon, for 4-5 mins until browned. Add the Italian seasoning and parsley and cook, stirring, for 1 min or until combined.
Step 4 — Cook sauce
Stir the tomatoes, 60ml (¼ cup) water and ½ tsp sugar into the pork mixture and bring to a simmer. Reduce the heat to low and cook, covered, for 15 mins to develop the flavour.
Step 5 — Cook pasta
While the sauce is cooking, cook the pasta in the pan of boiling water for 10 mins or until al dente. Reserve 2 tbs cooking water, then drain the pasta.
Step 6 — Get ready to serve
Meanwhile, finely grate the parmesan. Coarsely chop the capers (see cooking tip). Add the capers and spinach to the sauce and cook, stirring, for 1-2 mins until the spinach is wilted. Add the pasta and reserved cooking water to the sauce and stir to combine. Taste, then season with salt and pepper. Divide pasta among bowls and scatter with the parmesan to serve.