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Zucchini Gratin

Zucchini gratin is made with tender half-moons of zucchini in a creamy, cheese sauce to create a flavorsome baked dish that showcases the flavors of this underrated low carb vegetable.
Prep Time 15 mins
Cook Time 30 mins
Total Time 45 mins
Course Side Dish
Cuisine American
Servings 6
Calories 312 kcal


  • 2 large zucchini sliced in half, then cut into half moons (about ¼ inch thick)
  • 1 cup parmesan cheese freshly shredded
  • 4 tablespoons butter
  • 1 small yellow onion sliced into thin half moons
  • ½ cup beef broth
  • 1 ½ cup Monterey Jack cheese
  • 1 tablespoon garlic paste
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • ½ tablespoon dried parsley
  • cup heavy cream


  • In a large ovenproof skillet over medium heat, add butter and onions. Cook until onions are starting to caramelize and brown, about 10 minutes. Add garlic paste and stir well.
  • Add zucchini to the skillet and stir to combine. Let zucchini cook for 5 minutes while stirring often. It should be soft enough to pierce with a fork, but still somewhat firm so it holds its shape while it continues cooking.
  • Add in the beef broth, salt, pepper, dried parsley, and the heavy cream into the onion garlic mixture. Stir to combine.
  • Allow the sauce to slightly begin to bubble, then add in the parmesan cheese and 1/4 cup Monterey Jack cheese. Stir well to melt the cheese and combine. Let simmer on low for 3 to 4 minutes.
  • Top with remaining cheese and place in the oven under the broiler. Broil for 3 to 4 minutes, or until the cheese is hot, bubbly, and starting to brown.
  • Remove from the oven and serve over chicken, pork chops, or along with your favorite meat and potatoes!


From Recipe Developer: The sauce is a bit runny in this recipe. I prepared it this way to allow for you to spoon the cream sauce over meat, potatoes, or rice. If you want a thicker sauce add 1 tablespoon to the beef broth and whisk together before adding it to the skillet.
TIP: Don’t slice the zucchini too thin or it will fall apart while cooking.
TIP: Watch closely to make sure that the cheese doesn’t burn. It will only take a couple of minutes for the cheese to brown up.


Calories: 312kcalCarbohydrates: 7gProtein: 15gFat: 26gSaturated Fat: 16gTrans Fat: 1gCholesterol: 75mgSodium: 769mgPotassium: 376mgFiber: 1gSugar: 4gVitamin A: 995IUVitamin C: 21mgCalcium: 447mgIron: 1mg