
This garlic shrimp spaghetti squash is a light, low-carb dinner packed with juicy shrimp, roasted squash strands, and a buttery garlic sauce that comes together in under an hour.

If you have ever stared at a bowl of spaghetti squash and thought, this needs something more, this recipe is your answer. Shrimp spaghetti squash brings together tender roasted squash strands and juicy pan-seared shrimp in a bright, garlicky butter sauce that feels completely indulgent without any of the heaviness of a pasta dinner.
This is the kind of dish that earns a permanent spot in your weeknight rotation. It is naturally gluten-free, fits beautifully into a keto lifestyle, and comes together from a handful of fresh, simple ingredients. Whether you are new to spaghetti squash or already a convert, this garlic shrimp version is genuinely one of the best shrimp and spaghetti squash recipes you will make.
Before we get cooking, it is worth mentioning that the quality of your pan matters enormously here. A wide, heavy skillet is what gives those shrimp a proper golden sear and lets the garlic butter sauce come together without burning. Using a good microplane for the lemon zest also makes a real difference in the brightness of the final dish.
Spaghetti squash has a mild, slightly sweet flavor that acts almost like a blank canvas. The real magic in this recipe comes from building layers of flavor in the pan:
The result is a plate of spaghetti squash with shrimp that tastes like it came from a coastal Italian-American kitchen, not a low-carb meal plan.
Chef's Tip: The single biggest mistake people make with shrimp is overcrowding the pan. Cook in a single layer and do not move them for the first 90 seconds. That contact with the hot pan is what builds flavor.
If you are new to working with spaghetti squash, here is what you need to know. Cut the squash in half lengthwise, scrape out the seeds with a spoon, brush the cut sides with olive oil, and place them cut-side down on a lined baking sheet.
Roasting cut-side down is the key to getting those long, noodle-like strands. It traps steam against the flesh, cooking it evenly from the inside out. After 35 to 40 minutes at 400 degrees F, the skin will feel slightly soft when pressed and the interior will pull apart into gorgeous golden strands with just a fork.
One of the best things about this recipe is how well it adapts to meal prep. Once roasted, the scraped squash strands keep in an airtight container in the refrigerator for up to 3 days. You can also freeze cooked spaghetti squash for up to 3 months. Spread the strands in a single layer on a baking sheet to freeze first, then transfer to a freezer bag to prevent clumping. Thaw overnight in the fridge before using.
Knowing how to preserve spaghetti squash properly means you can roast a large batch on Sunday and pull together a fast keto shrimp with spaghetti squash dinner on a busy Wednesday in under 15 minutes.
This recipe is flexible by design. Here are a few easy ways to riff on it:
Ready to pull this together? Here is the full step-by-step recipe:

This garlic shrimp spaghetti squash is a light, low-carb dinner packed with juicy shrimp, roasted squash strands, and a buttery garlic sauce that comes together in under an hour.
Preheat your oven to 400 degrees F (200 degrees C). Line a large baking sheet with parchment paper.
Brush the cut sides of the spaghetti squash with 1 tablespoon of olive oil and season with 0.25 teaspoon of salt and a few grinds of black pepper. Place cut-side down on the prepared baking sheet.
Roast the squash for 35 to 40 minutes, until the skin yields easily when pressed and the flesh pulls into tender strands with a fork. Set aside to cool slightly.
While the squash roasts, pat the shrimp completely dry with paper towels. Season with the remaining 0.5 teaspoon of salt and 0.25 teaspoon of black pepper.
Heat the remaining 1 tablespoon of olive oil and 1 tablespoon of butter in a large skillet over medium-high heat. Once shimmering, add the shrimp in a single layer. Cook for 1 to 2 minutes per side, just until pink and curled. Transfer to a plate and set aside.
Reduce the heat to medium. Add the remaining 2 tablespoons of butter to the same skillet. Once melted, add the garlic and red pepper flakes. Cook, stirring constantly, for 60 seconds until fragrant but not browned.
Pour in the white wine (or chicken broth) and add the cherry tomatoes. Cook for 2 to 3 minutes, stirring occasionally, until the tomatoes begin to soften and the liquid reduces by about half.
Use a fork to scrape the spaghetti squash flesh into long strands directly into the skillet. Toss gently to coat in the garlic butter sauce.
Return the cooked shrimp to the skillet. Add the lemon juice and lemon zest, then toss everything together over low heat for 1 minute until warmed through.
Taste and adjust seasoning as needed. Divide among plates, garnish with fresh parsley and Parmesan if using, and serve immediately.
Serve this dish straight from the skillet while everything is hot and the sauce is glossy. A shower of fresh parsley and a handful of grated Parmesan over the top takes it from a simple weeknight plate to something that feels genuinely special.
For leftovers, store everything together in an airtight container for up to 2 days. Reheat gently in a skillet with a small splash of broth rather than the microwave. Shrimp reheated too aggressively becomes rubbery, and the squash strands will stay in much better shape with low, slow heat.
Whether you are cooking for the whole family or meal prepping lunches for the week, this shrimp with spaghetti squash is the kind of recipe that never gets old.