Less is more in this quick and easy weeknight dinner. It calls for just five main ingredients (penne, broccoli, garlic, lemon, and Parmesan) and requires minimal cleanup.
Bring a large pot of salted water to a boil. Add penne and cook 5 minutes. Add broccoli and cook until pasta is just under al dente and broccoli is crisp-tender and bright green, 3 to 4 minutes more. Drain, then add pasta and broccoli back to pot.
Toss with garlic, oil, lemon zest and juice, and cheese. Serve, topped with more cheese.