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zucchini gratin in cast iron skillet
Zucchini Gratin
Nothing satisfies quite like our ooey-gooey cheesy zucchini gratin that pairs wonderfully with any French favorite main course!
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Prep Time 10 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 20 minutes
Course Dinner, Side Dish
Cuisine French
Servings 6
Calories 236 kcal

Equipment

Ingredients
  

  • 2 zucchinis medium-sized
  • 2 shallots thinly sliced lengthwise
  • 1 tsp olive oil
  • 1 tbsp unsalted butter
  • 1 egg
  • 1/2 cup heavy cream
  • 1 cup Gruyere cheese grated
  • 1/4 cup Parmesan cheese grated
  • 1/4 cup panko breadcrumbs
  • 2 tbsp flat-leaf parsley finely chopped
  • 1 1/8 tsp salt 1 tsp to season heavy cream, egg, and cheese mixture and 1/8 tsp to season the shallots
  • ground pepper

Instructions
 

1. Preheat the Oven and Prepare Vegetables and Cheese
  • Preheat the oven to 375 degrees Fahrenheit (191 degrees Celsius).
  • Thinly slice zucchini and them between layers of paper towel to press out the excess liquid.
  • Thinly slice shallots (lengthwise) and finely chop flat-leaf parsley. Set aside.
  • Grate Gruyere and Parmesan cheese using a box grater for a large grate. Set aside.
2. Whisk Together Eggs and Heavy Cream and Fold in Cheese
  • Warm the heavy cream in a saucepan on the stovetop at medium heat.
  • Whisk egg and warm heavy cream together in a mixing bowl.
  • Fold in 3/4 of the grated cheese.
  • Season with salt and pepper.
3. Sauté the Shallots until Caramelized
  • Place a cast-iron skillet on the stovetop at medium-low heat.
  • Add butter and olive oil. Allow the butter to melt and bubble.
  • Add shallots, and season with salt and pepper.
  • Sauté them for 20-30 minutes or until caramelized.
4. Sauté the Zucchini for 10 minutes
  • Turn the stovetop up to medium heat.
  • Add zucchini slices.
  • Sauté them for 10 minutes.
  • Turn the stovetop off.
5. Pour in Egg, Heavy Cream, and Cheese Mix
  • Pour the egg, warmed heavy cream, and cheese mixture over the zucchini slices in the cast-iron skillet.
  • Sprinkle excess cheese, panko breadcrumbs, and flat-leaf parsley on top.
  • Season with additional ground pepper.
6. Bake and Serve
  • Bake in the oven for 25-30 minutes.
  • Serve and enjoy.

Video

Nutrition

Calories: 236kcalCarbohydrates: 6gProtein: 11gFat: 19gSaturated Fat: 11gTrans Fat: 1gCholesterol: 87mgSodium: 620mgPotassium: 258mgFiber: 1gSugar: 3gVitamin A: 874IUVitamin C: 14mgCalcium: 310mgIron: 1mg
Keyword approachable, authentic, Easy, one-pan, vegetarian
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