This vegetarian recipe is made with a rich and garlicky butter sauce, mushrooms, and spinach. It's super versatile and is an easy way to get in a serving of vegetables.
Clean the mushrooms. Slice each mushroom thinly. I include the mushroom stem.
Cook the pasta in a well-salted pot of boiling water until al dente. Reserve at least ½ cup of the starchy pasta water before draining.
Heat a large skillet over medium heat. Add 2 tablespoons of butter. Once melted, add the mushrooms. Sauté until golden, about 6 to 8 minutes.
Add the garlic, spinach, red pepper flakes, salt, and freshly ground black pepper, to taste.
Continue sautéing until the garlic is golden and aromatic and the spinach is completely wilted, just 2 to 3 minutes. Stir occasionally.
Stir in the cooked pasta, ¼ cup of the reserved pasta water, the sherry cooking wine, and the remaining tablespoon of butter. Optionally, add the remaining ¼ cup of water for a thinner sauce.
Serve garnished with ample finely grated Asiago cheese and additional black pepper, to taste.
Video
Notes
Mushrooms: Feel free to get creative with mushroom varieties here. Shiitake is another good option, however I recommend removing the stems as they tend to have a woody texture.
Pasta: Any variety of pasta works here. I like to use protein pasta to add a little extra protein to the dish. Banza makes my favorite protein penne.
Cheese: Finely grating the asiago allows it to melt quickly, but any thickness works. Parmesan is another good option.
Dairy-free option: Replace the butter with plant butter and use vegan Parmesan in place of asiago.
Storage: Best within 3-4 days. Keep refrigerated in a closed container.
Nutrition calculations are an estimation and reflect standard white pasta. Actual nutrient amounts vary based on the brands used.