01 -
Set a big pot of water with salt over medium-high heat and wait for it to boil.
02 -
In a wide pot, heat olive oil gently. Toss in the onion and red pepper flakes, cooking for about 10 minutes until the onions look soft.
03 -
Add the sausage to the pot, breaking it into little bits with a wooden spoon. Let it sizzle until it’s browned and fully cooked.
04 -
Mix in the minced garlic and cook for just a minute. Then blend in the tomato paste until it’s mixed well.
05 -
Pour in the cherry tomatoes and wine or broth. Sprinkle salt and pepper. Stir now and then, letting the tomatoes pop and soften, around 10 minutes. If they don’t, gently press them down.
06 -
Mix the diced zucchini into the pot and cook for about 5 minutes more.
07 -
Once the water’s boiling, toss in rigatoni and cook for 9-10 minutes until firm but not mushy. Drain the pasta but save 1/2 cup of the water.
08 -
Put the drained pasta into the sauce pot and mix it all around. Add a bit of the cooking water if it’s too thick.
09 -
Turn off the heat, stir in the basil, and dish it out into bowls. Sprinkle freshly grated Parmesan over each plate and serve right away.