Easy Weeknight Tomato Basil Pasta

This easy weeknight tomato basil pasta turns a few pantry staples into a bright, satisfying dinner in about 30 minutes. Cherry tomatoes soften in olive oil with garlic until they burst into a quick sauce; a splash of starchy pasta water and a little butter help it cling to the noodles. Fresh basil goes in at the end, when its fragrance is strongest.

The method is intentionally simple, but two small details make a difference. Salt the pasta water so the noodles are seasoned throughout, and reserve the water before draining. Then finish cooking the pasta in the tomato pan instead of rinsing it. The starch on the noodles helps the sauce come together without cream or a long simmer.

Ingredients

• 12 ounces dried spaghetti, linguine, or rigatoni
• 1 tablespoon kosher salt for the pasta water, plus more to taste
• 3 tablespoons extra-virgin olive oil
• 4 garlic cloves, thinly sliced
• 1/4 teaspoon crushed red pepper flakes, optional
• 1 1/2 pounds ripe cherry or grape tomatoes, halved
• 1/2 teaspoon kosher salt and 1/4 teaspoon black pepper
• 2 tablespoons unsalted butter, cut into small pieces
• 1/2 cup finely grated Parmesan, plus more for serving
• 1 packed cup fresh basil leaves, torn just before serving
• 1 teaspoon red wine vinegar or lemon juice, optional, to brighten

Cherry tomatoes are convenient because they become jammy as they cook, but ripe plum tomatoes also work. If using larger tomatoes, remove any tough stem cores and chop them into 1/2-inch pieces so they soften at a similar pace.

Equipment

Use a large pot for the pasta, a wide 12-inch skillet for the sauce, a colander or spider strainer, tongs, and a heat-safe measuring cup for pasta water. A wide skillet gives the tomatoes room to release moisture without steaming in a deep pile. Grate the Parmesan finely so it melts quickly when tossed with the hot pasta.

Instructions

1. Start the pasta water. Bring a large pot of water to a boil. Add 1 tablespoon kosher salt, then add the pasta and cook until just shy of al dente, following the package timing and tasting a minute before the suggested finish. Before draining, reserve at least 1 cup of pasta water.
2. Warm the garlic gently. While the pasta cooks, heat olive oil in a wide skillet over medium-low heat. Add sliced garlic and red pepper flakes, if using. Stir for 1 to 2 minutes until fragrant and softened, not deeply browned. Burnt garlic turns bitter, so lower the heat if the slices darken quickly.
3. Build the tomato sauce. Add the tomatoes, salt, and black pepper. Raise the heat to medium and cook for 8 to 12 minutes, stirring occasionally. Press a few tomatoes with the back of a spoon as their skins split; leave some whole for texture. If the pan becomes dry before the tomatoes soften, add 2 tablespoons of pasta water.
4. Finish the pasta in the pan. Use tongs to move the pasta directly from the pot to the skillet, or drain it while keeping the reserved water nearby. Add 1/3 cup pasta water and toss over medium heat for 1 to 2 minutes. The noodles should finish cooking in the sauce and the liquid should begin to look lightly glossy.
5. Emulsify and season. Turn off the heat. Add butter and Parmesan, tossing continuously until the sauce looks silky and clings to the noodles. Add more pasta water a tablespoon at a time if it looks tight; if it seems watery, toss over low heat for another 30 seconds. Taste before adding salt because pasta water and cheese are already seasoned.
6. Add basil and serve. Fold in most of the basil and the vinegar or lemon juice if the tomatoes taste especially sweet. Divide into warm bowls and finish with the remaining basil, more Parmesan, and black pepper.

How the sauce comes together

Tomatoes release water as their structure softens. Pasta water contains starch left behind by the noodles, so when it is tossed with olive oil, tomato juices, butter, and grated cheese, it helps these ingredients form a cohesive coating rather than separating into oil and liquid. Add the pasta water gradually. Different shapes and brands release different amounts of starch, so the amount needed can vary.

The sauce should look loose in the skillet because it thickens slightly as it coats the pasta and cools. If you wait until the pan looks completely dry before serving, the noodles can become sticky. A few tablespoons of hot water can loosen it again, but adding too much at once will make the flavor seem diluted.

Substitutions and variations

Use whole-wheat pasta if you like its nuttier flavor, but check it early because cooking times differ. Pecorino Romano can replace Parmesan; it is saltier, so taste before seasoning. For a dairy-free version, leave out butter and Parmesan, then finish with 1 additional tablespoon of olive oil and a spoonful of finely chopped toasted walnuts for richness. A handful of baby spinach can be folded into the hot sauce just before the pasta; let it wilt briefly rather than cooking it for several minutes.

If fresh basil is unavailable, use a small amount of dried basil in the tomato pan and finish with parsley. Dried herbs are more concentrated and do not have the same fresh aroma, so start with 1 teaspoon and adjust to taste. Add olives or capers sparingly; both bring salt that can change the final seasoning.

Storage and reheating

For best texture, serve this pasta soon after tossing. Cool leftovers promptly and refrigerate within 2 hours in a covered container. Keep the refrigerator at 40°F or below and use within 3 to 4 days. Reheat a portion in a skillet with 1 to 2 tablespoons of water, stirring over medium-low heat until hot. Add fresh basil after reheating, not before storage, because cut leaves darken. The USDA recommends reheating leftovers to 165°F.

Common mistakes

• Draining without reserving pasta water: Set a heat-safe cup beside the pot before draining so this useful sauce ingredient is not lost.
• Overcooking the noodles in the pot: Finish them in the skillet so they absorb tomato flavor without turning soft.
• Adding cheese over high heat: High heat can make cheese clump. Turn the burner off before adding butter and Parmesan.
• Cooking garlic too fast: Start over medium-low heat and pull the pan off the burner if the slices brown too quickly.
• Adding basil too early: Fresh basil loses its aroma with prolonged heat. Stir it in at the end.

Related recipes and techniques

For another speedy dinner, try 30-minute beef and broccoli or one-pan lemon garlic chicken and vegetables. To improve the vegetable sides you serve with pasta, read how to sauté vegetables without making them soggy.

Food safety source

For storage and reheating guidance, see the USDA Food Safety and Inspection Service page on leftovers and food safety.