Bring a pot of water to a boil. Add peas and cook until tender. Use a slotted spoon to transfer the peas to a large bowl.

In the same pot of boiling water, add pasta and cook according to package instructions for al dente. 

Meanwhile, use a fork to mash the peas. Add lemon zest, lemon juice, nutritional yeast, oil, and pepper and combine. 

Drain pasta and reserve a bit of the water in case it is needed. 

Add pasta to the bowl with the peas and stir well to combine. Add pasta water as needed to moisten the pasta.