Boil the Pasta: Fill a large pot with water, add salt, and bring to a boil. Cook rotini according to package instructions, about 8-10 minutes.

Sauté the Garlic: Heat olive oil in a skillet over medium heat. Add minced garlic and sauté for 30 seconds until fragrant.

Cook the Zucchini: Add sliced zucchini to the skillet and sauté for 4-5 minutes until slightly soft.

Add the Tomatoes and Season: Stir in cherry tomatoes, red pepper flakes, salt, and pepper. Cook for another 3-4 minutes.

Combine Pasta and Veggies: Drain pasta and add to skillet. Toss over low heat for about a minute.

Garnish and Serve: Remove from heat, add parsley and Parmesan. Serve warm.