For the spaghetti with spinach leaves and shrimp, bring a pot of salted water to a boil and cook the spaghetti al dente for about 9 minutes.
Meanwhile, heat a pan with olive oil and sauté the finely chopped onion, garlic and chili. Add the defrosted spinach leaves and the chopped zucchini and peppers.
Then add the halved cocktail tomatoes, the chopped mozzarella, and the shrimp and sauté for a few minutes.
Fold in the spaghetti cooked al dente in the pan, arrange and serve with parmesan taken care of.