Many of the ingredients for this jazzed-up mac and cheese are things you may already have on hand:, pasta, flour, milk, garlic powder, and Parmesan cheese. If you have no mozzarella cheese or pesto on hand, though, you might need to run out and pick those up. And, of course, you’ll want salt and pepper. The recipe calls for 1 teaspoon each, but you can make adjustments based on your taste preferences. You could also pick up some fresh basil when you’re in the store in case you want the finished dish to look pretty. Bonus: a sprig of fresh basil on top of the dish might even give the impression that you made your own pesto from scratch!