Cook the linguini in well salted water according to package directions. Before draining the pasta, scoop out and reserve ½ cup of the pasta cooking water.
While the pasta is cooking, prepare the sauce. Heat 1 tablespoon olive oil in a large skillet set over medium heat. Add the leeks and cook, stirring occasionally under tender, about 5 minutes. If the leeks are drying out, add 1 to 2 tablespoons of hot water to the skillet.
Push the leeks aside and add the remaining teaspoon of olive oil. Stir the garlic and red pepper flakes into the olive oil. Cook for 1 minute. Add the white wine and simmer, stirring occasionally, for 3 minutes.
Add the cooked linguini to the white wine sauce, along with the lemon juice and zest. Toss to coat. Add the Parmesan cheese a couple of tablespoons at a time, tossing with the pasta to melt. If the pasta has absorbed all of the sauce, add a splash of the reserved pasta cooking water as needed to help melt the cheese.
Add the smoked salmon and dill. Toss to combine. Taste the pasta and season with additional salt and pepper, if needed. Serve.
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Notes
Note 1: Bucatini and fettucine are good substitutes.Note 2: Check out my tutorial on how to prepare leeks for tips on cleaning and chopping leeks.Note 3: I highly recommend using freshly grated cheese and definitely not the stuff in a can! The texture and flavor of the sauce benefits from the good stuff. Parmigiano Reggiano, Pecorino Romano and Asiago are all good options. Please note that I am not a medical or nutritional professional. I provide nutritional information for my recipes as a courtesy to my readers. It is calculated using the built-in recipe card calculator. While I attempt to provide information that is as accurate as possible, you should calculate the nutritional information independently before relying on it.