Low Carb Spaghetti Squash Casserole

Why You’ll Love This Recipe

This casserole offers a delicious way to enjoy spaghetti squash with a savory turkey filling and melty cheese topping. It’s packed with protein, veggies, and flavor while keeping carbs low. Easy to prepare and bake, it’s a satisfying dish that’s perfect for weeknight dinners or meal prep.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• 1 medium spaghetti squash
• 1 lb ground turkey
• ¼ cup oil (olive or avocado oil recommended)
• ½ teaspoon garlic powder
• 1 tablespoon dried parsley
• ¼ cup chopped yellow onion
• ¼ cup chopped bell pepper (red or green)
• ½ cup grated Parmesan cheese (use real Parmesan)
• 1 (3.8 oz) can sliced black olives
• 1 cup shredded mozzarella cheese (hand-shredded preferred)

Directions

1. Preheat oven to 375°F (190°C).
2. Cut the spaghetti squash in half lengthwise and remove seeds. Drizzle with a little oil, then place cut side down on a baking sheet. Roast for 35-40 minutes or until tender. Use a fork to shred the flesh into strands. Set aside.
3. While the squash roasts, heat oil in a large skillet over medium heat. Add chopped onion and bell pepper, sautéing until softened, about 5 minutes.
4. Add ground turkey, garlic powder, and dried parsley to the skillet. Cook until turkey is browned and cooked through, breaking it apart with a spoon.
5. Stir in the sliced black olives and cooked vegetables, cooking for another 2 minutes. Remove from heat.
6. In a large mixing bowl, combine the shredded spaghetti squash, turkey mixture, grated Parmesan cheese, and half of the shredded mozzarella. Mix gently until combined.
7. Transfer the mixture to a greased baking dish. Sprinkle the remaining mozzarella evenly over the top.
8. Bake uncovered for 20-25 minutes, until the cheese is melted and bubbly.
9. Remove from oven and let cool slightly before serving.

Servings and Timing

This recipe serves 4 to 6 people.
Preparation time: 15 minutes
Cooking time: 60 minutes (includes roasting spaghetti squash)
Total time: 1 hour 15 minutes

Variations

• Add chopped spinach or kale for extra greens.
• Use fresh herbs like basil or oregano instead of dried parsley.
• Include crushed red pepper flakes for a spicy kick.
• Top with shredded cheddar or a cheese blend instead of mozzarella.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat in the microwave or oven until warmed through.

FAQs

Can I cook the spaghetti squash in the microwave?

Yes, you can microwave it for 10-12 minutes on high, turning halfway through. Adjust cooking time based on size.

Is this recipe keto-friendly?

Yes, it’s low in carbs and fits well into keto and low-carb diets.

Can I use canned spaghetti squash?

Fresh is preferred for texture, but canned can be used in a pinch.

Can I freeze leftovers?

Yes, freeze in an airtight container for up to 1 month. Thaw before reheating.

What if I don’t like olives?

You can omit them or substitute with chopped sun-dried tomatoes.

Can I make this recipe vegetarian?

Substitute turkey with cooked lentils or plant-based ground meat alternatives.

How do I make the casserole creamier?

Add a few tablespoons of cream cheese or ricotta to the mixture before baking.

Can I add other vegetables?

Yes, mushrooms, zucchini, or eggplant work well in this casserole.

Is it important to hand-shred the mozzarella?

Hand shredding helps prevent clumping and gives a cleaner melt, but pre-shredded works fine.

How can I make this dish spicier?

Add crushed red pepper flakes, hot sauce, or diced jalapeños to the turkey mixture.

Conclusion

Low Carb Spaghetti Squash Casserole is a delicious, hearty, and healthy alternative to traditional pasta casseroles. With a flavorful combination of turkey, vegetables, olives, and cheeses, it’s perfect for low-carb or keto diets and makes for a satisfying meal any night of the week.

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