Brown chicken sausages and remove when cooked. Chop into small pieces to add to the marinara sauce later.
Add finely chopped celery, onions, garlic, oregano and a pinch of chopped basil to the remaining oil in the pan. Season.
Add tomato paste and tinned tomato. Fill the empty tin halfway with water and add a teaspoon of brown sugar.
Bring the sauce to a simmer over medium-high heat for about 30 minutes.
Stir occasionally, and use a sturdy wooden spoon or masher to crush the tomatoes against the pot after about 15 minutes have passed.
Sprinkle over chilli flakes to taste.
Roast the baby marrow noodles for about 5-10 minutes or until cooked (firm to the bite/al dente). Season with salt and pepper only after roasting.
There are 187 calories in 1 serving of Spicy Marinara Zoodles with Chicken Sausage.