Prep: Make sure everything is prepped and ready to go, the sauce takes only 2 minutes to put together.
Cook the pasta: Boil a pot of water for the pasta and cook it to al dente, according to the package instructions.
Save the water: When the pasta has a few minutes left to cook, reserve one cup of the cooking water, and start heating the oil in a skillet over medium heat.Once cooked, drain the pasta and set aside.
Make the sauce: Add the garlic to the oil and cook, stirring, for about a minute or until fragrant, being careful not to let it get too brown. Add the pepper, lemon zest, and lemon juice. Stir.
Mix: Add the sauce to the pasta. Add the spinach. Add cheese if using. Stir and heat through (about 1 minute).Add pasta water slowly while stirring to make a sauce. I usually use almost the whole cup. Let sit for a few minutes to let the sauce thicken slightly and the spinach wilt.
Serve: with extra cracked black pepper, grated cheese, and lemon slices (all optional).
Video
Notes
Substitutions/Additions:Try a different pasta like linguine, fettuccine, or spaghetti.Use green peas, asparagus, or kale instead of spinach.Add a protein on the side like grilled chicken, shrimp, or veggie balls. Serve more vegetables on the side like steamed or roasted broccoli or green beans.Store in the fridge for 4-5 days - reheat in the microwave or a skillet with a splash of water.