Zucchini Gratin Recipe - Allrecipes.com
Zucchini Gratin Recipe

Zucchini Gratin

Recipe by  

"Delicious layers of cheese, onion and zucchini with a buttery bread crumb topping your family will love!"

+ Recipe Box + Shopping List + Menu Print

Ingredients Edit and Save

Original recipe makes 6 servings Change Servings
  • PREP

    30 mins
  • COOK

    40 mins

    1 hr 10 mins


  1. Preheat oven to 400 degrees F (200 degrees C). Grease an 8x10-inch baking dish.
  2. Melt 6 tablespoons of butter in a large skillet over medium heat, and cook and stir the onion until soft, about 6 minutes. Mix in the zucchini, and cover the skillet; cook until tender, about 10 minutes. Stir in the kosher salt, black pepper, and parsley, and cook uncovered for 5 more minutes. Stir in flour, and reduce heat to a simmer.
  3. Mix the hot milk and chicken bouillon granules together in a small bowl, stirring until the bouillon has dissolved. Pour the milk into the skillet, and bring to a simmer, stirring constantly until the milk thickens into a sauce, about 5 minutes. Pour the zucchini mixture into the prepared baking dish. Sprinkle with Cheddar cheese. Mix the bread crumbs with 1/2 cup of melted butter, and sprinkle the crumbs over the casserole.
  4. Bake in the preheated oven until the casserole is bubbling and the top has browned, about 20 minutes.
Kitchen-Friendly View

Reviews More Reviews

Most Helpful Positive Review
Oct 08, 2012

I completely left out the salt and it was so good.

Most Helpful Critical Review
Aug 27, 2011

I made this recipe following the instructions exactly and it was soooo salty I had to throw it out. with 2 tsp of salt plus 1 tbsp of chicken granules which are in themselves salty it was overwhelmed with salt. And then the cheese on top which is also loaded with salt. I may try it again and omit the salt but it is definately inedible as the recipe stands.

Sep 01, 2011

Fourteen tablespoons of butter for six servings!?! No wonder some people thing it tastes good, butter is like that, but where does it end??? Zucchini can taste great without all of that butter........ ?????

Sep 02, 2011

Leaving out the recipe saved me. I took it to a pot luck BBQ. Made 2 pans, thought I would get to take some home. Nope. It was devoured and I have sent this recipe on to multiple people from the BBQ. Next time I am going to try it with a little less butter. Thanks

Nov 03, 2011

I give it five stars with the adjustments I made. After reading other reviews, I left out the salt in the mix. And rather than mixing the bread crumbs with half a cup of butter, I just mixed them with the cheese and sprinkled on top. It was very tasty. Two of my kids didn't like it, but that's only because they don't like zucchini. They ate the rest of it.

Dec 10, 2011

I have had this recipe for only about a month and I have made it several times even for our Thanksgiving gathering and my family loves it.

Sep 01, 2011

FABULOUS!!! I will definitely be making it again.... even the kids loved it!

Dec 13, 2011

Delicious! I made it pretty much exactly as directed, and it turned out great! Creamy and cheesy and perfect!


Rate This Recipe

Glad you liked it! Your friends will, too:


  • Calories
  • 423 kcal
  • 21%
  • Carbohydrates
  • 19.8 g
  • 6%
  • Cholesterol
  • 94 mg
  • 31%
  • Fat
  • 34.9 g
  • 54%
  • Fiber
  • 2.5 g
  • 10%
  • Protein
  • 10.1 g
  • 20%
  • Sodium
  • 1281 mg
  • 51%

* Percent Daily Values are based on a 2,000 calorie diet.

See More

About the Cook

Heidi O
0 Followers 0 Saved Recipes
Recently Saved Recipes
Subscribe Today!

In Season

Not The Same Old Chicken
Not The Same Old Chicken

We have so many top-rated chicken recipes, you'll never run out of dinner ideas again.

Slow Cooker Time Savers
Slow Cooker Time Savers

Imagine dinner making itself in the slow cooker while you relax or do other things.

Subscribe Today! Only $7.99
Subscribe Today! Only $7.99

Delicious recipes, party ideas, and cooking tips! Get a year of Allrecipes magazine for $7.99!

Related Videos

Cream Cheesy Zucchini

See how to make a creamy, delicious zucchini side dish.

Stuffed Zucchini Boats

Zucchini are stuffed with sausage and topped with tomato sauce and melty cheese.

Carrot Zucchini Vegetable Casserole

Sliced vegetables bake with a creamy, cheesy sauce and crunchy bread-crumb top.

Recently Viewed Recipes

Argentina  |  Australia & New Zealand  |  Brazil  |  Canada  |  China  |  France  |  Germany  |  India  |  Italy  |  Japan  |  Korea  |  Mexico

Netherlands  |  Poland  |  Quebec  |  Russia  |  SE Asia  |  United Kingdom & Ireland  |  United States