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healthy spaghetti squash au gratin baked

Healthy Spaghetti Squash Au Gratin: A Light, Cheesy Classic You’ll Love


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  • Author: lia
  • Total Time: 55 minutes
  • Yield: 4 servings 1x

Description

A lightened-up cheesy casserole with roasted spaghetti squash, Greek yogurt, and sharp cheddar. Creamy, satisfying, and low-carb!


Ingredients

Scale

1 medium spaghetti squash

1 tbsp olive oil

½ cup diced onion

2 cloves garlic, minced

½ cup plain Greek yogurt (or sour cream)

1½ cups shredded sharp cheddar cheese, divided

¼ tsp salt

¼ tsp black pepper

Optional: ¼ tsp paprika or thyme for extra flavor


Instructions

1. Preheat oven to 400°F. Slice spaghetti squash in half, scoop seeds, and roast cut-side down for 35–40 minutes.

2. Once cool, use a fork to scrape the strands. Place in a clean towel and squeeze out excess water.

3. In a pan, heat olive oil and sauté onion for 3–4 minutes. Add garlic and cook 1 minute more.

4. In a large bowl, mix Greek yogurt, half the cheese, sautéed onions, garlic, salt, pepper, and optional spices.

5. Fold in the squash strands gently.

6. Transfer to a greased baking dish. Top with remaining cheese.

7. Bake at 375°F for 20–25 minutes until bubbly and golden. Broil last 2 minutes if desired.

8. Cool slightly and serve warm.

Notes

Roast the squash to prevent sogginess. Don’t skip squeezing out water.

Store in fridge up to 4 days. Reheat covered in oven for best results.

  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Category: Sides
  • Method: Baked
  • Cuisine: American

Nutrition

  • Serving Size: 1 cup
  • Calories: 210
  • Sugar: 4g
  • Sodium: 310mg
  • Fat: 12g
  • Saturated Fat: 6g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 12g
  • Fiber: 2g
  • Protein: 14g
  • Cholesterol: 30mg