Warm olive oil in a wide pan over medium heat then soften the onion.
Stir in garlic and cook until it smells nutty about thirty seconds.
Add tomato paste and cook it until it turns brick red.
Tip in cherry tomatoes zucchini broth oregano basil and red pepper flakes.
Simmer until tomatoes slump and zucchini turns tender then season with salt and pepper.
Fold in basil and parmesan so the sauce turns glossy.