Plain Mushroom And Onion Penne Pasta Recipe

Pasta is always a good idea for a meal, but with so many options out there, it can sometimes be hard to narrow down exactly what you're craving. One thing is certain, though. After a busy day, many of us don't have the time to spend hours cooking in the kitchen and instead want something simple but fulfilling — and that's where this plain mushroom and onion penne pasta comes in.

Recipe developer Susan Olayinka of The Flexible Fridge has crafted an easy yet elegant pasta dish that doesn't sacrifice flavor for simplicity. This mushroom and onion pasta uses fresh, wholesome ingredients, and the result is a truly tasty dish. "I would describe the flavor as quite cheesy, mild, and earthy from the mushrooms," Olayinka says of this recipe. Unlike many pasta recipes, this dish isn't drenched in a tomato or Alfredo sauce, but instead has a mild butter and garlic coating to give it uncomplicated yet irresistible flavor. If you're looking for a simple pasta dish that only requires a few ingredients, you've certainly come to the right place. Keep reading to learn how to make this plain mushroom and onion penne pasta.

Gather the ingredients to prepare plain mushroom and onion penne pasta

Before you can start making your mushroom and onion pasta, you'll have to gather the right ingredients. This recipe calls for using penne pasta, so be sure to have some of that on hand. Additionally, you'll need button mushrooms, yellow onions, garlic, fresh parsley, olive oil, Parmesan cheese, butter, salt, and water. Because this is such a simple pasta dish, it's also easy to sub out some of the ingredients for what you have on hand. For instance, Olayinka says that you can use a different kind of mushroom, like portobello, oyster, or shiitake, as well as a different kind of onion like red, white, or shallots.

Start by cooking the pasta and prepping the mushrooms, onion, garlic, and parsley

Once you have your ingredients sorted, you can begin prepping them to make the dish. First, start cooking your penne in boiling water, per the instructions on the package. Then, grab your cutting board and a knife, and get ready to chop some vegetables! Start with the mushrooms, and thinly slice them, as shown in the image. Next, dice your onions, and set them aside. Mince your garlic cloves, then set those aside as well. Finally, pull off a couple of leaves of your fresh parsley, thinly slice them, and then set it aside with the rest of the chopped ingredients.

Cook your vegetables

Now that all of your vegetables and additions are chopped up, you can begin cooking. Put a frying pan over medium-high heat, and add in the olive oil and butter. Then, toss in the minced garlic and chopped onion, and allow those to cook for about two minutes. As these ingredients cook, you'll notice a delightful aroma of butter and garlic start to fill the air. By this point, you can toss in your mushrooms, and allow those to cook in the pan for about four minutes.

Add the pasta, Parmesan, and parsley to the pan, and then serve

As your mushrooms finish cooking, go ahead and drain your pasta, and then immediately transfer it into the pan. Then, add in the chopped parsley, Parmesan cheese, and salt, and give everything a good stir. Now, you're ready to serve your plain mushroom and onion penne pasta, and enjoy!

Olayinka says, "[You] can definitely pair some grilled meat with this [pasta dish], for example, chicken or steak," though it also stands as a fulfilling and delicious dish on its own. Though you only use a handful of ingredients to make this recipe, you'll notice a wide range of delicious flavors that make this pasta dish stand out above the rest. And, if you have leftovers, you can store them in the fridge for two to three days, and simply sprinkle on some fresh Parmesan when you reheating. Considering how appetizing this plain mushroom and onion penne pasta is, however, it's safe to say that there may not be any leftovers after you make this dish.

Plain Mushroom And Onion Penne Pasta Recipe
5 from 37 ratings
This mushroom and onion penne pasta recipe uses fresh, wholesome ingredients, and the result is a truly tasty dish.
Prep Time
Cook Time
pasta in a bowl
Total time: 20 minutes
  • 2 cups uncooked penne pasta
  • 4 cups water
  • 7 ounces button mushrooms, thinly sliced
  • 2 yellow onions, diced
  • 3 garlic cloves, minced
  • ¼ cup parsley, thinly sliced
  • 2 tablespoons extra-virgin olive oil
  • 1 tablespoon butter
  • ½ cup Parmesan cheese
  • ¼ teaspoon salt
  1. Begin the recipe by cooking the pasta according to the package instructions.
  2. While it's cooking, thinly slice the mushrooms, and set aside.
  3. Dice the yellow onions, and set aside.
  4. Mince the garlic cloves, and set aside.
  5. Pick off the leaves from the parsley, thinly slice them, and set aside.
  6. Get a frying pan, and into it place the extra-virgin olive oil and butter, and turn the heat up to medium-high. Place the minced garlic cloves and chopped onions into the pan, and cook for 2 minutes.
  7. Next, add the sliced mushrooms, and cook for 3 to 4 minutes.
  8. Once the pasta is cooked, drain the pasta, transfer it immediately to the frying pan, and mix.
  9. Add the chopped parsley, Parmesan, and salt to the frying pan, and mix together.
  10. Serve immediately.
Calories per Serving 393
Total Fat 15.5 g
Saturated Fat 6.0 g
Trans Fat 0.1 g
Cholesterol 20.3 mg
Total Carbohydrates 48.2 g
Dietary Fiber 3.4 g
Total Sugars 5.2 g
Sodium 421.7 mg
Protein 16.0 g
The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.
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