Prep time: 10min |
Cooking time: 15min |
Serving 4 | Amateur |
Cook the pasta in a large pan of salted boiling water, adding the green beans and cherry tomatoes for the final 3 minutes of cooking time. Drain, reserving a mug of cooking water.
Whizz the parsley, half the rocket, 3 tablespoons of oil from the tuna, the zest and juice of the lemon, and some seasoning with enough of the reserved water in a food processor to form a spoonable pesto dressing.
Tip the pasta, tomatoes and green beans back into the pan and add the pesto, both cans of tuna and the sour cream, stirring through until hot. Remove from the heat and toss the rest of the rocket through the pasta.