One-Pot Creamy Mushroom Penne

By CookFrames
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Enjoy this effortless one-pot creamy mushroom penne. Featuring earthy mushrooms, fresh spinach, and a velvety sauce, it's the ultimate low-cleanup comfort meal.

↓ The ingredients ↓ The steps

Embracing the simplicity of home cooking, this one-pot creamy mushroom penne is designed for those days when you want a delicious, comforting meal without the hassle of washing multiple pans. By cooking the pasta directly in the flavorful, creamy broth, you achieve a perfectly integrated sauce that coats every piece. It is a casual, adaptable dish that welcomes your personal touch, whether that means a little extra garlic or a spicy kick of chili.

A creamy serving of mushroom penne pasta in a dark bowl, garnished with spinach.
A creamy serving of mushroom penne pasta in a dark bowl, garnished with spinach.
Prep10 mins
Cook25 mins
Total35 mins
Yield2 servings
DifficultyEasy
Calories550 kcal

Ingredients

Instructions

  1. 1Prepare the spinach
    Fresh spinach leaves being cut on a wooden cutting board.

    Take fresh spinach leaves and slice them into large, rough pieces on a cutting board. There is no need for precise cutting, as these will wilt down quickly once added to the pasta later.

    Tip: Keep the pieces large to maintain texture in the finished dish.
  2. 2Slice the mushrooms
    Fresh mushrooms being sliced with a knife on a wooden board.

    Using a sharp knife, carefully slice your mushrooms on a wooden cutting board. You can slice them to your preferred thickness, keeping in mind they will shrink slightly when cooked.

    Tip: Wipe mushrooms with a damp cloth instead of washing them to keep them firm.
  3. 3Tear the mushrooms
    Hands tearing fresh mushrooms into smaller chunks.

    Alternatively, use your hands to tear the mushrooms into smaller, rustic pieces. This method is quick and creates more surface area for better browning in the pan.

    Tip: Tearing can often lead to a better texture than slicing for certain mushroom varieties.
  4. 4Slice the red onion
    Red onion being thinly sliced on a wooden cutting board.

    Place the red onion on the cutting board and slice it into thin, uniform strips. These will soften beautifully when sautéed with the mushrooms.

    Tip: Thin slices ensure the onion incorporates evenly into the creamy pasta sauce.
  5. 5Heat the pan
    Olive oil being poured into an empty preheated pan.

    Place a pan over medium heat and drizzle in a generous amount of olive oil. Ensure the oil coats the surface evenly before adding your aromatics.

    Tip: Wait for the oil to shimmer slightly before adding ingredients to ensure proper sautéing.
  6. 6Sauté aromatics and mushrooms
    Garlic, onions, and mushrooms cooking in a pan.

    Add the prepared garlic, mushrooms, and sliced red onion to the hot pan. Sauté the mixture for about three minutes, or until the onions become translucent and the mushrooms begin to soften.

    Tip: Stir frequently to prevent the garlic from burning and ensure even cooking.
  7. 7Add the dry pasta
    Dry penne pasta pouring from a box into a black pan with sautéed sliced mushrooms and onions.

    Add your desired amount of dry penne directly into the pan with the sautéed garlic, mushrooms, and red onions. Stir everything together so the pasta mixes evenly with the vegetables.

    Tip: Penne or farfalle are excellent choices for this one-pot method because they cook evenly when submerged in liquid.
  8. 8Pour in the liquids
    A steady stream of a milk and water mixture being poured into a pan over dry penne and sautéed vegetables.

    Pour a mixture of milk and water into the pan, ensuring that the liquid completely covers all the ingredients. If you prefer a richer, creamier sauce, you can add a little heavy cream at this stage.

    Tip: It is crucial that the pasta is fully submerged in the liquid so it cooks thoroughly and evenly during the simmering phase.
  9. 9Season the cooking liquid
    Fingers dropping a piece of bouillon into a pan filled with penne pasta simmering in a creamy white broth.

    Drop a small bouillon cube into the pan to enhance the savory flavor of the liquid, along with a couple of bay leaves. Cover the pan and let everything cook on high heat for 15 to 18 minutes.

    Tip: If you dont enjoy the flavor of bay leaves, you can easily leave them out. Remember to check the pan occasionally to ensure the liquid hasnt evaporated too quickly.
  10. 10Stir in the spinach
    An orange spatula stirring fresh green spinach leaves and butter into a pan of creamy cooked penne pasta.

    Once the pasta is tender and the liquid has reduced to a creamy sauce, turn the heat down to low. Add a small piece of butter and a handful of fresh spinach, then stir everything together gently until combined.

    Tip: Cook the spinach very briefly over low heat just until wilted. Overcooking it will cause the leaves to lose their vibrant green color and fresh flavor.
  11. 11Garnish with cheese and pepper
    A generous mound of grated parmesan cheese and specks of black pepper resting on top of cooked creamy mushroom and spinach penne in a black pan.

    Finish the dish by generously seasoning it with freshly grated parmesan cheese and a crack of black pepper. If you prefer a spicy kick, a dash of chili sauce makes a great addition.

    Tip: Since this is a one-pot meal designed for convenience, you can serve it straight from the pan to save on cleanup.

Storage & Reheating

Refrigerator
2 days
Store in an airtight container. The sauce may thicken; add a splash of water or milk when reheating.
Reheating
3–5 min
Reheat gently on the stovetop over low heat, stirring frequently to maintain the creamy consistency.

Burn It Off

Leisurely Cycling
~90 minutes at a relaxed pace (~13 km/h).
Brisk Walking
~2 hours at a steady pace (~5 km/h).
House Cleaning
~2 hours and 10 minutes of active cleaning.

Frequently Asked Questions

Yes, this method works well with most dried pasta shapes like farfalle, fusilli, or rigatoni. Just adjust the cooking time according to the package instructions.
Pasta releases starch as it cooks, which thickens the liquid. If it becomes too thick before the pasta is tender, simply add a small splash of water or milk until you reach your desired consistency.
The key is to stir the spinach in only at the very end of cooking, off the heat or over very low heat, so it wilts gently while retaining its texture and color.
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