Step 1

Add the broth, linguine, onion, broccoli, asparagus, mushrooms, garlic, red pepper flakes, salt and pepper to a large pot set over high heat. Drizzle the olive oil over the top.

Step 2

As soon as it comes to a boil, set the timer for 7 minutes and start tossing constantly with long-handled tongs.

Step 3

Continue boiling and tossing. As soon as the 7 minutes is up, add the peas, parsley, heavy whipping cream, Parmesan, and lemon zest and continue cooking, tossing constantly, for 1-2 more minutes, until the pasta and veggies appear tender. Remove from heat.

Step 4

Note that much of the liquid will have evaporated, but not all. And that's okay! Let the pasta sit for a couple of minutes to cool; the sauce will continue to thicken during that time. Taste and add additional salt and pepper if desired. Garnish with additional Parmesan cheese.