Step 1

In a large pot, cook pasta according to package directions.

Step 2

When pasta is done, drain, and reserve 1/2 cup of the starchy cooking liquid.

Step 3

Return pot to stove with cooked pasta and over LOW heat, stir in pesto and reserved pasta water. Add in pasta water a few tablespoons at a time, stir and check the consistency. You don't want it too watery, you just want enough water to help incorporate the pesto. Usually about 1/4 cup does the trick.

Step 4

Gently fold in tomatoes, tuna and artichoke hearts, stirring carefully to combine. Heat over low heat for a minute or so, just until everything is warmed through. Serve immediately with a good squeeze of lemon, Parmesan cheese and crushed red pepper, if you like!