To make, add butter to a large pot and set to medium-high heat. Add the mushrooms, zucchini, onions, garlic, and a few cracks/shakes of salt and pepper. Cook vegetables for about 6-8 minutes.
Next, add egg noodles and bring to a boil. Cook for 10-12 minutes, uncovered, or until the pasta is tender. You will want most (but not all) of the liquid to be absorbed.