Bring large pot of water to boil. Add pasta and cook according to package.

Meanwhile, while water is heating, remove chicken sausage from casings and cook in large skillet over medium high heat.

Once cooked through, remove from skillet and set aside on a plate.

In same skillet, heat olive oil (there will also be a little grease from the sausage) over medium heat.

Add leeks, season with salt and pepper, and saute for 5 minutes, until they start to soften.

Add asparagus and cook another 3-5 minutes, until the asparagus starts to soften.

Finally, add frozen peas and cook until heated through, about 3 more minutes.

Return sausage to skillet, then add pasta and toss to combine.

Finally, add Parmesan cheese and toss until everything is evenly incorporated.

Season with salt and pepper, to taste. Enjoy!