Savoury carbonara slice recipe

Name: Savoury carbonara slice recipe
Prep time: 20 min
Cook time: 1 h 10 min
Total time: 1 h 30 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 medium (about 250g) green zucchini, cut into noodles; 400g dried spaghetti pasta; 18.20 gm olive oil; 1 large brown onion, finely chopped; 2 garlic cloves, crushed; 400g bacon rashers, cut into strips; 70g (1 cup) finely grated parmesan; 4 eggs; 2 egg yolks; 375ml (1 1/2 cups) pouring cream; Fresh continental parsley leaves, to serve (optional)