5.0 from 33 votes
Zucchini Gratin
This recipe for zucchini gratin features summer squash and onions in a creamy sauce topped with crispy, buttery breadcrumbs. It tastes light and rich at the same time with a delicate, mouthwatering flavor.
Prep Time
10 mins
Cook Time
10 mins
Total Time
50 mins
Servings: 6 servings
Calories: 238 kcal
Course:
Side Dish
Cuisine:
American
Ingredients
- 4 tablespoons unsalted butter divided, plus more for buttering the baking dish
- ½ lb yellow onions about 2 medium cut in half and sliced
- 1 lb zucchini 2 medium or 1 extra large, sliced ¼ inch thick
- 1 teaspoon salt
- ½ teaspoon freshly ground black pepper
- ⅛ teaspoon freshly grated nutmeg
- 2 tablespoons flour
- ½ cup whole milk
- ¾ cup panko or fresh bread crumbs
- ¾ cup grated gruyere cheese
- Minced fresh parsley or chives to garnish optional
Notes
- If using very large zucchini from the garden, they can sometimes have tough skin and large, hard seeds. In this case, it's best to peel and remove the seeds with a spoon before slicing.
- For a richer, more decadent zucchini gratin, swap out the milk for heavy cream and double the cheese.
- If baking in a convection oven, lower the heat to 375 degrees F or the top could brown too quickly.
- If the top of the gratin isn't browned enough by the time it's finished baking, pop it under the broiler for a minute or two. Watch it carefully so it doesn't burn.
Nutrition Information
Calories
238kcal
(12%)
Carbohydrates
19g
(6%)
Protein
9g
(18%)
Fat
15g
(23%)
Saturated Fat
9g
(45%)
Polyunsaturated Fat
1g
Monounsaturated Fat
4g
Trans Fat
0.3g
Cholesterol
41mg
(14%)
Sodium
621mg
(26%)
Potassium
328mg
(9%)
Fiber
2g
(8%)
Sugar
5g
(10%)
Vitamin A
575IU
(12%)
Vitamin C
16mg
(18%)
Calcium
240mg
(24%)
Iron
1mg
(6%)
Nutrition Facts
Serving: 6servings
Amount Per Serving
Calories 238
% Daily Value*
| Calories | 238kcal | 12% |
| Carbohydrates | 19g | 6% |
| Protein | 9g | 18% |
| Fat | 15g | 23% |
| Saturated Fat | 9g | 45% |
| Polyunsaturated Fat | 1g | 6% |
| Monounsaturated Fat | 4g | 20% |
| Trans Fat | 0.3g | 15% |
| Cholesterol | 41mg | 14% |
| Sodium | 621mg | 26% |
| Potassium | 328mg | 7% |
| Fiber | 2g | 8% |
| Sugar | 5g | 10% |
| Vitamin A | 575IU | 12% |
| Vitamin C | 16mg | 18% |
| Calcium | 240mg | 24% |
| Iron | 1mg | 6% |
* Percent Daily Values are based on a 2,000 calorie diet.