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Tuna Pesto Pasta

bowl of pesto pasta with tuna and tomatoes with lemon on the side.

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Tuna pesto pasta is an easy dinner that's hearty and filling. With minimal prep, you can make this main course in only about 20 minutes with 5 ingredients (not counting salt and pepper). 

Ingredients

Scale
  • 12 ounces (340 g) fusilli (or your favorite pasta shape)
  • two 5 ounce (142 g) cans tuna packed in oil, undrained
  • 1 cup (227 g) pesto sauce (store-bought or homemade)
  • 2 cups (307 g) grape tomatoes, halved
  • 1 - 2 tablespoons fresh lemon juice, or more to taste
  • salt and black pepper, to taste
  • optional garnishes: torn basil leaves, lemon wedges

Instructions

  1. Set a large pot of water to boil on the stove.
  2. While the pasta water is coming to a boil, rinse and dry the grape tomatoes. Cut each tomato in half vertically, set aside.
  3. When the pasta water begins to boil, add a generous pinch of salt and stir in the pasta. Cook the pasta according to the package directions.
  4. Drain the pasta, but first reserve about 1/2 cup of the pasta water.
  5. Return the drained pasta to the pot. Add in the tomatoes, pesto sauce, 1 tablespoon lemon juice, and two cans of tuna (add in the entire can, do not drain first). Gently mix the pasta together with the other ingredients until combined. Do not overmix as to avoid breaking the tuna apart too much.
  6. Optional step: if you would like the pasta sauce to be thinner, or if the pesto needs help mixing into the pasta, drizzle in small amounts of the pasta water, stirring in between each addition, until you are happy with the consistency.
  7. Taste the pasta and season with salt and black pepper to taste. If needed, squeeze in a bit more lemon juice.
  8. Serve immediately, with (optional) garnishes of torn basil leaves and/or extra lemon wedges.

Notes

Tuna packed in olive oil provides great flavor; otherwise, you can use any kind of tuna packed in oil.

If you can find it, look for tuna labeled "solid," such as "solid white albacore" or "solid light yellowfin." Because this tuna comes in larger chunks, rather than small flakes, this will provide lots of great texture to the dish. 

While tuna packed in oil provides the best flavor and texture (in my opinion), you can also substitute tuna packed in water. Drain away most of the liquid (some remaining is fine) before adding to the pasta. If you like, you can also add in 2 - 3 teaspoons of olive oil to replace what would have been added from the tuna packed in oil.

The nutrition information below is an estimate only, provided by an online nutrition calculator. The nutrition counts of your dish will vary based on the brand and exact amounts of ingredients used. This nutrition estimate should not be considered a substitute for professional medical, health, or nutritional advice. See our full disclosure policy.

Nutrition