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Zucchini and Yellow Squash Gratin

Delicious Zucchini and Yellow Squash Gratin for Cozy Nights

This Zucchini and Yellow Squash Gratin is a comforting dish that combines creamy layers of cheesy goodness with tender veggies.
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Prep Time 15 minutes
Cook Time 40 minutes
Resting Time 10 minutes
Total Time 1 hour 5 minutes
Servings: 6 servings
Course: Dinner
Cuisine: American
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Gratin
  • 4 cups Zucchini Freshness and slight sweetness; can substitute with yellow squash for variety.
  • 4 cups Yellow Squash Adds a slightly nutty flavor; use all zucchini for consistent taste.
  • 1 medium Onion Adds depth and sweetness when caramelized; substitute with shallots for a milder flavor.
  • 2 cloves Garlic Provides aromatic, savory notes; use garlic powder if fresh is unavailable.
  • 1 cup Heavy Cream Creates a rich, creamy sauce; replace with half-and-half for a lighter version.
  • 1 cup Gruyère Cheese Nutty and buttery flavor that melts well; can swap with Swiss cheese for a different profile.
  • 0.5 cup Parmesan Cheese Sharp, salty taste that enhances flavor; Pecorino Romano can be used as a substitute.
  • 1 tablespoon Fresh Thyme Adds an aromatic touch; dried thyme is a possible alternative if fresh isn't available.
  • to taste Salt Enhances overall flavor; adjust according to taste preferences.
  • to taste Pepper Enhances overall flavor; adjust according to taste preferences.
  • 2 tablespoons Olive Oil Used for greasing the baking dish and adding richness; can substitute with melted butter if desired.
Optional Topping
  • 0.5 cup Breadcrumbs For added crunch; sprinkle on top before baking for a delightful texture contrast.

Equipment

  • Baking dish
  • Mixing Bowl
  • whisk

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 350°F (175°C).
  2. In a greased baking dish, layer thinly sliced zucchini and yellow squash. Add finely chopped onion and minced garlic between the layers.
  3. In a mixing bowl, combine heavy cream, Gruyère cheese, Parmesan cheese, fresh thyme, salt, and pepper. Whisk until smooth and pour evenly over the layered vegetables.
  4. Drizzle olive oil over the top and gently mix the gratin layers with a spatula.
  5. Bake for 40 minutes until the top is golden and bubbling. Check for tenderness by piercing the veggies with a fork.
  6. Let the gratin rest for about 10 minutes before serving.

Nutrition

Serving: 1servingCalories: 350kcalCarbohydrates: 20gProtein: 10gFat: 25gSaturated Fat: 15gPolyunsaturated Fat: 2gMonounsaturated Fat: 8gCholesterol: 70mgSodium: 500mgPotassium: 800mgFiber: 3gSugar: 4gVitamin A: 15IUVitamin C: 20mgCalcium: 300mgIron: 2mg

Notes

This gratin strikes a perfect balance between indulgent comfort and wholesome veggie goodness, making it perfect for family gatherings.

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