Easy Pesto Pasta
Fresh basil pesto pasta with Parmesan, pine nuts, and cherry tomatoes for a quick meatless dinner.
Updated: Oct 7, 2026
Why you'll like it
- Ready in about 25 min.
- Serves 4 — easy to halve or double.
- Easy level — everyday equipment only.
- Storage, freezing and reheating covered below.
Easy Pesto Pasta takes about 25 min and serves 4. Pesto Pasta is a fast meatless dinner for USA home cooks combining short pasta with fresh basil pesto, Parmesan, and cherry tomatoes.
Helpful guides
Instructions
Bring a large pot of salted water to a boil and cook penne until firm-tender, about 10 minutes. Reserve 1 cup pasta water before draining. Toasting deepens nutty flavor and prevents raw woody taste in pesto.
Set aside to cool slightly while basil is prepared for blending.
This optional step locks bright green color for attractive serving. Combine blanched basil, toasted pine nuts, garlic, Parmesan, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a food processor. Pulse until coarsely chopped.
Scrape sides so garlic and nuts blend evenly without over-processing into paste too early.
With processor running, drizzle in olive oil slowly until smooth but slightly textured. Pesto should taste bold and salty because pasta dilutes flavor. If too thick, add 1 tablespoon water.
If bitter, add more Parmesan and 1 teaspoon olive oil.
Toss quickly with tongs until every piece is glossed and sauce thins to coating consistency. Add more pasta water 1/4 cup at a time if dry. Stir in halved cherry tomatoes so residual heat softens them slightly without cooking fully.
Serve immediately in warm bowls topped with extra Parmesan, pine nuts, and basil leaves. Check pasta is hot and evenly green with tomatoes distributed throughout. Pair with grilled chicken cooked to 165 degrees F, shrimp, or white beans for complete protein.
Offer red pepper flakes and lemon wedges separately.
Cool leftovers within 2 hours and refrigerate promptly. Refresh cold pesto pasta with 1 tablespoon olive oil and a squeeze of lemon to revive flavor. For packed lunches, keep chilled below 40 degrees F until serving.
Do not leave pasta with fresh herbs out longer than 2 hours.
Troubleshooting — fixes, not repeats
- If pesto is bitter, garlic was too much or basil stems included. Use leaves only and balance with Parmesan and lemon.
- If pasta is dry, add hot pasta water gradually. Pesto needs liquid to spread; oil alone makes it heavy.
- If color browns, toss off heat and serve promptly. Blanching basil and lemon juice slow oxidation.
- If bland, salt pasta water well and taste pesto bold before tossing. Cheese and nuts vary in salt.
Make it your way
- Mild version for children: For variation, replace half the basil with baby spinach or arugula for milder flavor and lower cost.
- Use walnuts or almonds instead of pine nuts with similar toasting.
- Add 2 cups shredded rotisserie chicken or 1 can white beans for protein.
- For creamy pesto, stir in 1/4 cup ricotta with pasta water.
Storage & reheating
Cool leftovers within 2 hours, then refrigerate in a covered container and use within 3 to 4 days. Reheat only the portion you will eat until steaming hot throughout — poultry and reheated rice should reach 165°F (74°C).
Reheat gently to 165 degrees F with 1 tablespoon water per cup, or serve cold as pasta salad.
Freeze pesto cubes up to 3 months; thaw in refrigerator.
FAQ
Can I use jarred pesto?
Yes. Use 3/4 cup jarred pesto for 12 ounces pasta plus pasta water to loosen. Refresh with fresh Parmesan, lemon, and tomatoes for brighter flavor and better coating.
How do I keep pesto green?
Blanch basil briefly, toss off heat, and serve promptly. Add lemon juice and store with plastic directly on surface to limit air exposure.
Can I make it nut-free?
Yes. Omit nuts and use 1/4 cup sunflower seeds or extra Parmesan. Toast seeds lightly. Texture stays creamy with pasta water and oil emulsion.