In a large pot, cook the pasta al dente according to the directions on the package. Before straining, use a measuring cup or any heat-safe cup with a handle to dip into the boiling water, reserving at least ½ cup of the pasta water.
16 ounces short pasta*
While your pasta is cooking, chop mushrooms and basil, dice the garlic, and squeeze the juice from the lemon.
8 ounces mushrooms, 2 cloves garlic, peeled, ¼ cup fresh lemon juice
Once the pasta is cooked and you've reserved some pasta water, pour the pasta and any excess water into a strainer and allow the pasta to dry.
½ cup reserved pasta water**
Put the pot back on the stove over medium heat and add mushrooms (+ any other vegetables you want to add—see notes below for suggestions!), garlic, olive oil, salt, and pepper. Cook until mushrooms release their juices, about 5 minutes.
½ teaspoon salt, 1 tablespoon olive oil, ½ teaspoon black pepper
Remove from heat and add hummus, basil, lemon juice, and ¼ cup reserved pasta water. Whisk to combine and evaluate the consistency. We want a smooth and creamy sauce, almost like the consistency of alfredo. If need be, slowly add more pasta water, about 1 tablespoon at a time, until desired consistency achieved. You should not need to add more than ½ cup of pasta water.
2 sprigs fresh basil, leaves and stems, 1 ¼ cup hummus
Add the pasta back to the pot and stir to coat the pasta in the hummus sauce.
Serve immediately warm, or refrigerate and serve cold. Garnish with extra fresh basil for an herbaceous finish.