Pasta w/ Peppers & Mozzarella

This salad was so yummy and if I hadn't been so tired all day and fallen asleep right before dinnertime, I would have rememberd to make some chicken which would have complemented it very well. I figure that at least I made something!!

12 oz short pasta (like gemelli or penne)
1/4 cup olive oil
2 red bell peppers, thinly sliced (i only had one and it was fine)
2 cloves garlic, chopped
2 bunches arugula, thick stems removed (about 6 cups)
12 oz of small balls fresh mozzarella, cut in half
kosher salt & pepper

-cook the pasta. Reserve 1/2 cup of the cooking water, drain the pasta, and set aside. Wipe out the pot. (i should have read on when i was making this b/c you'll end up needing a pretty big pot b/c you add all ingredients in at the end!)
-Heat the oil in the pasta pot over medium heat. Add the bell peppers and garlic and cook, stirring occasionally, until the peppers are tender, 5-7 mins. (i also added a can of garbonzo beans here for some protein and it was yum!)
-Add the arugula, mozzarella, cooked pasta, reserved pasta water, 1 1/2 tsp salt and 1/4 tsp pepper. Cook, stirring, until the arugula is just wilted, about 1 minute.