Easy Oven, Microwave, and Instant Pot Spaghetti Squash Recipe

Introduction

Spaghetti squash is a versatile and healthy alternative to traditional pasta. Its unique texture easily separates into noodle-like strands, making it perfect for a variety of dishes. Whether you bake, microwave, or use a pressure cooker, this recipe guides you to tender, flavorful results every time.

Two white plates each hold a serving of spaghetti squash layered with bright yellow strands forming the base, topped with a thick, rich red tomato sauce. Over the sauce is a sprinkling of white grated cheese, and fresh green basil leaves add a pop of color on top. A silver fork rests on the edge of the front plate, which sits on a dark wood surface with green parsley leaves around it. The background and the second plate are softly blurred to focus on the front dish. photo taken with an iphone --ar 4:5 --v 7

Ingredients

  • 1 spaghetti squash (about 3 lbs)
  • 1 teaspoon olive oil
  • Salt and pepper, to taste

Instructions

  1. Step 1: Preheat your oven to 400°F if baking. Using a sharp knife, make a dotted line with small cuts along the area where you will cut the squash. Pierce the whole squash about 10 times with the knife. For easier cutting, you can microwave the whole squash for 3-4 minutes, but do not microwave longer to avoid explosion.
  2. Step 2: Cut the squash lengthwise along the dotted line and scoop out the seeds and stringy bits.
  3. Step 3 (Oven method): Place the squash halves cut side down on a parchment-lined baking sheet. Bake for 40 to 60 minutes until the skin is browned and the inside is tender. The strands should pull away easily but remain firm. Use a fork to separate the squash into noodles.
  4. Step 4 (Microwave method): Add 1/4 cup of water to a casserole or glass baking dish. Place the squash halves cut side down in the dish and cover tightly with plastic wrap. Microwave on high for 8 to 10 minutes. Carefully remove the plastic wrap as hot steam will escape. Separate the strands with a fork.
  5. Step 5 (Instant Pot/Pressure Cooker method): Add 1 cup of water and a steamer basket or trivet to the Instant Pot. Place the squash halves cut side up on the steamer basket and secure the lid. Cook on high pressure for 10 minutes, allowing time for pressure to build. Release the steam valve to vent and carefully remove the lid. Separate the strands with a fork once the squash is tender.
  6. Step 6: Drizzle olive oil over the cooked squash noodles and season with salt and pepper to taste. Serve with your favorite sauce or use as a base for other recipes.

Tips & Variations

  • Microwaving the squash before cutting helps make slicing safer and easier.
  • Adjust cooking times based on squash size; larger squashes may need more time.
  • Try topping with homemade tomato sauce or toss with garlic and herbs for extra flavor.

Storage

Store cooked spaghetti squash in an airtight container in the refrigerator for up to 5 days. Reheat gently in the microwave or on the stovetop until warmed through. Avoid overcooking when reheating to maintain the noodle texture.

How to Serve

Two halves of cooked spaghetti squash rest on a white marbled surface inside a silver baking tray. The squash's outer shell is a golden-yellow color with some browning and soft texture from roasting. Inside each half, thin, long strands of yellow spaghetti squash flesh are visible, being loosened and scraped by a fork held by a woman's hand in the upper left corner. The strands have a slightly translucent and moist appearance. To the right edge, a white cloth with a printed brown and black pattern is partially visible. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I prepare spaghetti squash ahead of time?

Yes, you can cook and store spaghetti squash in the fridge for up to 5 days. It makes a great meal prep ingredient that you can quickly reheat and add sauces or toppings to.

Is it better to bake or microwave spaghetti squash?

Baking gives a deeper roasted flavor and firmer texture, while microwaving is faster and convenient for a quick meal. Both methods yield tender squash noodles—choose based on your time and preference.

Print

Easy Oven, Microwave, and Instant Pot Spaghetti Squash Recipe

This versatile spaghetti squash recipe provides three different cooking methods—oven baking, microwave steaming, and Instant Pot pressure cooking—to create tender, noodle-like strands perfect as a low-carb pasta alternative. Learn step-by-step how to prepare and cook this healthy vegetable, along with tips for serving and storage.

  • Author: lucas
  • Prep Time: 10 minutes
  • Cook Time: 40-60 minutes (Oven), 8-10 minutes (Microwave), 10 minutes + pressure build time (Instant Pot)
  • Total Time: 50-70 minutes (Oven), 18-20 minutes (Microwave), 25-30 minutes (Instant Pot including pressure build and release)
  • Yield: Serves 4
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American
  • Diet: Low Fat

Ingredients

Scale

Main Ingredients

  • 1 spaghetti squash (approximately 3 lbs)
  • 1 teaspoon olive oil
  • Salt, to taste
  • Black pepper, to taste

Instructions

  1. Prepare the Squash: Using a sharp knife, make a dotted line with small cuts where you want to cut your squash. Pierce the whole squash about 10 times to ventilate. You may also microwave the whole squash for 3-4 minutes first to soften it slightly and make slicing easier. Then, slice the squash in half along the dotted line and scoop out seeds and stringy pieces with a spoon.
  2. Baking Method: Preheat your oven to 400°F (205°C). Brush the cut sides of the squash with 1 teaspoon of olive oil and season with salt and pepper as desired. Place the squash halves cut-side down on a parchment-lined baking sheet. Bake for 40 to 60 minutes, until the skin is browned and the flesh is tender. Use a fork to shred the flesh into spaghetti-like strands.
  3. Microwave Steaming Method: Add 1/4 cup of water to the bottom of a microwave-safe casserole or glass baking dish. Place the squash halves cut-side down in the dish and cover tightly with plastic wrap. Microwave on high for 8 to 10 minutes. Carefully remove the plastic wrap (watch out for steam) and use a fork to separate the flesh into strands.
  4. Instant Pot Pressure Cooking Method: Pour 1 cup of water into the Instant Pot and place a steamer basket or trivet inside. Arrange the squash halves cut-side up on the steamer basket. Secure the lid and set the Instant Pot to Manual/High Pressure for 10 minutes. Allow the pressure to build for approximately 10 minutes before the cooking time starts. When done, carefully release the steam manually by turning the valve to venting and wait until the pin drops. Remove the lid and separate the cooked squash flesh into noodles with a fork.
  5. Serving and Storage: Serve the spaghetti squash noodles topped with your favorite homemade tomato sauce or use them as a substitute for pasta in your favorite recipes. Store any leftovers in an airtight container in the refrigerator and consume within 5 days.

Notes

  • Cooking times vary depending on the size of the squash; larger squashes may require additional baking or pressure cooking time.
  • Microwaving the whole squash for a few minutes before slicing makes it easier and safer to cut.
  • Use parchment paper on the baking sheet to prevent sticking when baking.
  • Be cautious when removing plastic wrap after microwaving as hot steam can escape.
  • The strands should be tender but still firm to the bite, avoiding mushiness.

Keywords: spaghetti squash, low carb pasta, vegetable noodles, healthy side dish, gluten free pasta alternative

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