Is penne considered macaroni?
In a lot of U.S. kitchens, “macaroni” is used as a casual catchall for short pasta, so penne often gets grouped in. Technically, though, “macaroni” can mean a specific shape (like elbows). Either way, penne is a great pick here because it traps sauce inside the tubes.
How do I keep the cheese sauce from getting grainy?
Two rules: keep the heat low when you add cheese, and use freshly grated Parmesan if you can. Pre-shredded cheeses often have anti-caking agents that can make sauces less smooth. Also, add the lemon juice off the heat so the acid does not shock the sauce.
Can I make this without flour?
You can skip the roux and thicken with pasta water and cheese, but the sauce will be looser and a bit more temperamental. If you are avoiding flour, try using 2 to 3 ounces cream cheese to help stabilize the sauce instead.
What protein goes well with this?
Rotisserie chicken, crispy bacon, sautéed shrimp, or a quick lemony pan-seared chicken cutlet all play nice here. Keep seasoning simple since the pasta is already garlicky and cheesy.
Can I add veggies?
Absolutely. Stir in baby spinach at the end, or sauté mushrooms and broccoli on the side and fold them in. If you add watery veggies, keep a little extra Parmesan on standby to help tighten the sauce.