Can I make this Caramelized Onion Spaghetti Squash ahead of time?

Absolutely! This dish is perfect for meal prep. You can prepare the caramelized onions and roast the squash in advance. Just store them separately in the fridge and combine them when you're ready to serve. It reheats beautifully!

What can I substitute for kale in this recipe?

If kale isn’t your favorite, feel free to swap it out for spinach or Swiss chard. Both options will add a lovely color and nutrition to your spaghetti squash with mushrooms and kale dish.

Is this recipe gluten-free?

Yes, indeed! This gluten-free squash casserole is made entirely with gluten-free ingredients, making it a safe choice for those with gluten sensitivities.

Can I add protein to this dish?

Definitely! You can toss in cooked chicken, shrimp, or even chickpeas for a protein boost. This makes it a heartier meal while still keeping it a low-carb vegetarian dinner squash.

How do I know when the spaghetti squash is done roasting?

The best way to check is by poking it with a fork. If it easily pierces the flesh, it’s ready! You want those strands to be tender and ready to soak up all the delicious flavors from the caramelized onions.

Caramelized Onion Spaghetti Squash (Sweet & Savory Low-Carb Recipe)

Description

A delicious and easy recipe for caramelized onion spaghetti squash, perfect for a low-carb vegetarian dinner.

Ingredients

1 2-3 lb. spaghetti squash
1/4 cup olive oil
2 tbsp butter (dairy-free option available)
2 medium yellow onions, peeled and sliced into longer strips
1 1/2 cup mushrooms
1 cup kale
1/4 tsp rosemary (fresh or dried)
Salt and pepper to taste
Optional: sprinkle of parmesan cheese

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Instructions

Preheat the oven to 400°F (200°C).
Cut the spaghetti squash in half lengthwise and scoop out the seeds.
Drizzle olive oil over the cut sides and season with salt and pepper.
Place the squash cut side down on a baking sheet and roast for 30-40 minutes until tender.
While the squash is roasting, heat butter and olive oil in a large skillet over medium heat.
Add the sliced onions and cook until caramelized, about 15-20 minutes.
Add mushrooms and kale to the skillet and cook until softened.
Once the squash is done, scrape the flesh with a fork to create spaghetti-like strands.
Combine the spaghetti squash with the caramelized onion mixture and toss to combine.
Serve warm, topped with a sprinkle of parmesan cheese if desired.

Notes

For a vegan option, omit the parmesan cheese.
Feel free to add other vegetables or proteins as desired.
This dish can be made ahead of time and reheated.

Prep Time: 15 minutes
Cook Time: 40 minutes
Category: Main Dish
Method: Roasting and Sautéing
Cuisine: American