Heat olive oil in a large pot over medium heat.

Add onion and cook for about 3-5 minutes, until softened.

Add garlic and cook for 1 minute more, until fragrant.

Add chorizo and cook, breaking it up with a spoon, until browned.

Add crushed tomatoes and broth. Bring to a boil, then reduce heat and simmer for 10 minutes.

Add pastina and cook according to package directions.

Stir in spinach and cook until wilted, about 2 minutes.

Stir in parmesan cheese and season with salt and pepper to taste.