This easy pesto penne with spinach and pine nuts can be served hot or cold. I love it as a flavourful side dish, but it is hearty enough to enjoy as a simple main meal too.
3cupsbaby spinachfresh and roughly chopped into small pieces
¾cupbasil pesto
½cupreserved pasta wateras needed
½cup Parmesan cheesefinely grated and divided
1tablespoonfresh lemon juice
¼teaspoonfreshly ground black pepper
⅛teaspoonred pepper flakesoptional
2tablespoons fresh basilchopped, optional
Instructions
Cook the pasta. Bring a large pot of salted water to a boil. Add the penne and cook until al dente according to the package directions. Reserve ½ cup of the pasta water, then drain.
Toast the pine nuts. Add the pine nuts to a large dry skillet over medium-low heat. Cook for 2 to 3 minutes, stirring often, until lightly golden. Transfer them to a plate.
Cook the spinach. Add the olive oil and garlic to the skillet. Cook for about 30 seconds. Add the chopped spinach and cook for 1 to 2 minutes, just until it begins to wilt.
Add the pasta and pesto. Reduce the heat to low. Add the cooked penne, pesto, lemon juice, black pepper and half of the Parmesan. Toss gently to combine.
Loosen the sauce. Add the reserved pasta water a few tablespoons at a time until the pesto becomes smooth and coats the pasta evenly.
Serve. Top with the remaining Parmesan, toasted pine nuts and fresh basil. Serve immediately.
Reserve ½ cup of pasta water before draining. Adding a little at a time helps the basil pesto coat the penne evenly and keeps this easy spinach pesto pasta smooth instead of dry.
Notes
Cook the penne until just al dente so it stays firm when tossed with the warm pesto sauce.
Reserve some pasta water before draining. It helps loosen the pesto and creates a smoother pesto penne pasta sauce.
Add the pesto over low heat or after removing the skillet from the burner. High heat can darken the basil and dull its fresh flavour.
Toast the pine nuts carefully. They brown quickly, so stir often and remove them as soon as they turn lightly golden.
Freshly grated Parmesan melts more smoothly and gives this spinach pesto pasta better flavour than pre-shredded cheese.
Chop the spinach into smaller pieces so it mixes evenly through the penne instead of gathering in large clumps.
Taste the pasta before adding extra salt. Pesto and Parmesan are already naturally salty.
This easy pesto pasta with spinach and pine nuts can be served warm, at room temperature or chilled as a pesto pasta salad.
When serving it cold, add a little extra lemon juice or olive oil because the pasta will absorb some of the sauce as it chills.
Add the pine nuts just before serving so they keep their light crunch.
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