Staub Rectangular Baking Dish Set, Rustic Turquoise
Buy Now →Cheesy Zucchini Casserole
This tasty zucchini casserole has it all—creamy cheesy sauce, lots of tender zucchini, and a buttery crunchy topping.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Bake
- Cuisine: American
Ingredients
Scale
- 1 stick (4 ounces) unsalted butter, divided
- 3/4 cup diced onion
- 6 cups sliced zucchini (about 2 pounds)
- 2 tablespoons flour
- 1 cup whole milk
- 3/4 teaspoon fine sea salt, or to taste
- 1/4 teaspoon mustard powder
- 1/4 teaspoon freshly ground black pepper
- 1 1/2 cups shredded mild cheddar cheese, divided
- 1 cup panko breadcrumbs
Instructions
- Heat the oven to 350 F and butter a 1 1/2-quart baking dish.
- Melt 4 tablespoons of butter in a large skillet over medium heat. Add the chopped onion and cook, stirring, for 2 minutes. Add the sliced zucchini, cover the pan, and reduce the heat to low. Cook for 8 minutes or until the zucchini is just tender. Remove the zucchini and onions to the baking dish with a slotted spoon.
- Wipe out the skillet and add 2 tablespoons of butter; melt it over medium heat and stir in the flour. Cook for 2 minutes then gradually add the milk. Taste and add the salt, mustard powder, black pepper, and 1/2 cup of the cheese. Cook, stirring, until hot and thickened. Pour the mixture over the zucchini mixture in the baking dish.
- Melt the remaining 2 tablespoons of butter and toss with the panko crumbs.
- Sprinkle the remaining cheese over the casserole, followed by the buttered panko crumbs.
- Bake for 25 minutes or until the topping is browned and the casserole is bubbling around the edges.
Credit: Diana Rattray
Equipment
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Find it online: https://classic-recipes.com/cheesy-zucchini-casserole/
