In a large skillet, heat olive oil over medium heat. Add minced garlic and sauté until fragrant.
3 
Add the cherry tomatoes to the skillet and cook until they start to soften and burst.
4 Add the cooked penne pasta to the skillet and toss to combine.
5 
Add the arugula and cook for another 1-2 minutes until it wilts.
6 Season with salt and pepper to taste.
7 
Serve in bowls and top with freshly grated Parmesan cheese.