One pot pasta with chorizo (open bowl)

Name: One pot pasta with chorizo (open bowl)
Prep time: 10 min
Cook time: 35 min
Total time: 35 min
Yield: 4 portions
Ingredients: 100 g fresh baby spinach leaves; 50 g Parmesan cheese; 1 brown onion; 2 garlic cloves; ½ carrot; 2 sprigs fresh flat-leaf parsley; 1 can canned crushed tomatoes; 650 g water; 1 - 1 ½ tbsp Vegetable stock paste; 2 pinches ground black pepper; 1 chorizo sausage; 200 g dried spaghetti; 2 sprigs fresh basil; 12 pitted Kalamata olives