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Buttery Lemony Garlic Mushroom Shrimp Scampi Spaghetti

Buttery spaghetti tossed with shrimp, garlic, mushrooms and shallots, brightened with lemon juice and a splash of rice vinegar.
Fish & Seafood1 generous servingUnder 20 minutes
Buttery garlic shrimp scampi spaghetti with sliced mushrooms and green onions in a white bowl
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This buttery lemony garlic mushroom shrimp scampi is my homemade twist on shrimp scampi. It is quick enough for a busy day, uses pre-cooked shrimp, and gets extra savory flavor from mushrooms and shallots. Lemon juice and rice vinegar cut through the butter and give the pasta a bright finish.

Why You’ll Love This Shrimp Scampi Spaghetti

It comes together quickly, uses simple ingredients and has plenty of garlic-butter flavor without a complicated sauce. The mushrooms make the pasta more satisfying, while the chili flakes, lemon and rice vinegar keep it bright and flavorful.

Buttery Lemony Garlic Mushroom Shrimp Scampi Spaghetti

Ingredients

  • 10 oz spaghetti
  • 1/2 cup pre-cooked shrimp
  • 3 tbsp butter
  • 1 cup mushrooms, sliced
  • 2 shallots, sliced
  • 4 garlic cloves, chopped
  • 1 tbsp rice vinegar
  • 1 tbsp lemon juice
  • 1 tsp dried parsley
  • 1/2 tsp crushed black pepper
  • 1/2 tsp chili flakes, or to taste
  • Salt, to taste
  • Chopped green onions, for garnish

Instructions

  1. Cook the spaghetti. Bring a pot of salted water to a boil. Add the spaghetti and cook for about 7 minutes, or according to the package directions until done to your liking.
  2. Start the buttery shrimp mixture. While the spaghetti cooks, melt the butter in a large pan. Add the chopped garlic, sliced mushrooms, shallots and pre-cooked shrimp.
  3. Cook briefly. Cook over high heat for about 2 minutes, stirring frequently so the garlic stays fragrant and the already-cooked shrimp do not overcook.
  4. Season. Add the dried parsley, crushed black pepper, chili flakes and salt to taste. Toss everything together.
  5. Add the tangy finish. Pour in the rice vinegar and lemon juice. Stir well and cook for about 2 more minutes.
  6. Toss with spaghetti. Drain the spaghetti, add it to the pan and toss until the noodles are coated in the buttery lemon-garlic mixture.
  7. Serve. Dish out immediately and garnish with chopped green onions.

Recipe Tips

Watch the pre-cooked shrimp. Because the shrimp are already cooked, they only need a short time in the hot pan. Longer cooking can make them rubbery.

Use the pasta package as your guide. My spaghetti took about 7 minutes, but different brands and thicknesses can need a little more or less time.

Keep a little pasta water. If the spaghetti feels dry when you toss it with the shrimp mixture, add a small splash of pasta water to loosen the butter sauce.

Adjust the heat. Use 1/2 teaspoon chili flakes for a gentle kick, or add them to taste.

Double it when needed. This was written as a generous meal for one. Double the ingredients when cooking for more people.

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