Arugula Pesto with Walnuts

Creamy, bold, and quick, Arugula Pesto brings a peppery bite, nutty depth, and rich Parmesan finish to pasta, sandwiches, roasted vegetables, and pizza night. It is a smart small-batch sauce that feels fresh, flexible, and reliable.

This is the kind of sauce that makes an ordinary dinner feel more put together without adding much work to your kitchen routine. You can stir it into warm pasta, spoon it over roasted potatoes, or spread it onto toast for a fast lunch.

What makes this version especially good is the layered garlic flavor. Roasting most of the cloves softens their sharp edge, while a small bit of raw garlic keeps the pesto lively and bright.

You also get a great balance from the arugula and walnuts. The greens bring that signature peppery taste, and the walnuts round everything out with a mellow richness that keeps the sauce from tasting too intense.

Ingredients

Arugula gives this pesto its bold, slightly peppery personality and vibrant green color.

Walnuts add a buttery, toasted depth that pairs especially well with assertive greens like arugula.

Parmesan cheese brings saltiness, body, and that savory finish that helps the sauce taste complete.

Olive oil loosens the mixture into a smooth, spoonable pesto and carries all the flavors together.

Roasted garlic gives the sauce a mellow, sweet backbone without overwhelming the greens.

Raw garlic adds a small burst of sharpness so the pesto still tastes fresh and punchy.

Salt helps balance the bitterness of the arugula and brings the nutty, cheesy notes forward.

Step-by-Step Arugula Pesto

STEP 1: Start with the garlic. Cook the unpeeled cloves in a dry skillet over medium-high heat until they are spotted with color and softened inside. Let them cool just enough to handle, then slip off the skins.

STEP 2: Toast the walnuts until fragrant and lightly golden. Keep a close eye on them, because nuts can go from perfectly toasted to too dark very quickly. Let them cool for a minute so they do not steam inside the processor.

STEP 3: Add the arugula, toasted walnuts, roasted garlic, the small piece of raw garlic, and salt to a food processor. Pulse a few times to break everything down into a coarse mixture.

STEP 4: With the processor running in short bursts, drizzle in the olive oil until the pesto looks thick, cohesive, and spreadable. You want it smooth enough to spoon, but not so loose that it turns oily.

STEP 5: Transfer the mixture to a bowl and stir in the Parmesan by hand. Mixing the cheese in at the end helps keep the texture pleasantly thick and gives you a little more control over the final consistency.

STEP 6: Taste the pesto before serving. Depending on your arugula, walnuts, and cheese, you may want a pinch more salt or a tiny splash of oil to round it out. Serve right away or chill for later use.

Can I make arugula pesto ahead of time?

Yes, this is a very make-ahead-friendly sauce. Prepare it in advance and keep it chilled so the flavors can settle together. A thin layer of olive oil on top can also help the surface stay fresher and greener.

Why use both roasted and raw garlic?

Using both gives the pesto more dimension. Roasted garlic tastes softer and slightly sweet, while raw garlic adds that classic fresh pesto bite. Together, they create a fuller flavor without making the sauce too harsh.

Is arugula pesto more bitter than basil pesto?

It can be a little more peppery and slightly more assertive, but it should not taste unpleasantly bitter. The walnuts, Parmesan, and roasted garlic help smooth out the sharper notes, giving you a balanced sauce rather than a harsh one.

Can I use this beyond pasta?

Absolutely. This pesto is excellent on grilled bread, roasted potatoes, grain bowls, pizza, sandwiches, and even spooned over simple cooked chicken or fish. It is one of those condiments that can wake up leftovers in seconds.

Helpful Tips

• Toast the walnuts just until fragrant. A light toast deepens the flavor without making the pesto too dark or overpowering.
• Add the Parmesan after blending the greens and oil. This keeps the texture thicker and helps you fine-tune the consistency.
• Taste at the end every time. Arugula, garlic, and cheese can vary a lot, so a final adjustment makes a big difference.

What to Serve with Arugula Pesto

A warm bowl of pasta is the obvious choice, and for good reason. The pesto clings especially well to shapes with ridges or twists, and a splash of hot pasta water can help it coat everything evenly without becoming heavy.

Roasted potatoes are another excellent match. Their crisp edges and fluffy centers give the peppery sauce something hearty to play against, turning a simple tray of potatoes into something that feels a lot more finished.

It is also wonderful on flatbread or pizza. Spread a thin layer over the crust after baking, or use dollops as a finishing sauce with roasted vegetables for a bright, savory contrast.

How to Store & Reheat

Store the pesto in an airtight jar or container in the refrigerator for up to 4 days. To help preserve the color, smooth the top and cover it with a very thin layer of olive oil before sealing.

For longer storage, freeze it in small portions for up to 2 months. Ice cube trays work especially well if you like having just a little pesto ready for quick meals.

This sauce does not need traditional reheating. Instead, let chilled pesto sit at room temperature for a few minutes so the oil softens again. If you are tossing it with hot pasta or vegetables, stir it in off the heat to keep the cheese smooth and the flavor fresh.

Arugula pesto is one of those simple sauces that proves a short ingredient list can still deliver big flavor. It has the richness you want from a classic pesto, but the arugula gives it a livelier, more spirited edge that makes it feel a little different from the usual jar or basil-based version.

It is also incredibly useful to have on hand. A spoonful can turn plain pasta into dinner, make a sandwich more interesting, or add a punchy finish to roasted vegetables without any extra fuss. That kind of flexibility is what makes homemade condiments worth making in the first place.

The combination of toasted walnuts, Parmesan, and two styles of garlic gives this version a layered flavor that tastes thoughtful without being complicated. Once you make it once, you will probably start seeing all kinds of ways to use it throughout the week.