Description

This Easy Cheesy Zucchini Casserole is a creamy, comforting dish perfect as a side or a light main. Tender zucchini is combined with rich mayonnaise, sharp cheddar cheese, and subtle seasoning, topped with buttery Panko breadcrumbs for a delightful crunch. Baked until golden and bubbly, it’s a simple yet flavorful way to enjoy summer squash.

Ingredients

Scale

Vegetables and Dairy

4 cups zucchini, diced into 1 inch pieces
1 cup shredded cheddar cheese
1 cup mayonnaise
2 eggs, slightly beaten

Seasonings & Toppings

1 tsp pepper
3/4 – 1 tsp garlic powder
1/4 cup Panko breadcrumbs
1 Tbsp butter, melted

Instructions

Parboil the zucchini: Bring a pot of water to a boil and add the diced zucchini. Cook for 3 minutes until just tender. Drain the water and set the zucchini aside to cool.
Mix the casserole ingredients: In a large bowl, combine the parboiled zucchini with mayonnaise, shredded cheddar cheese, slightly beaten eggs, pepper, and garlic powder. Stir well to evenly incorporate all ingredients.
Prepare the baking dish: Grease a 1 1/2 quart baking dish with butter or nonstick spray. Pour the zucchini mixture evenly into the dish, spreading it to the edges.
Add the breadcrumb topping: In a small bowl, combine the Panko breadcrumbs with melted butter until the crumbs are evenly coated. Sprinkle this mixture evenly over the zucchini casserole.
Bake the casserole: Place the baking dish in a preheated oven at 350°F (175°C). Bake uncovered for 35 minutes, or until the casserole is set, the zucchini is fork tender, and the breadcrumb topping is golden and crispy.

Notes

Use fresh zucchini for best flavor and texture.
If you prefer a richer taste, substitute half the mayonnaise with sour cream.
Panko breadcrumbs give a light, crunchy topping; regular breadcrumbs can be used but will be less crispy.
This casserole can be prepared a day ahead; refrigerate before baking, then add extra baking time if baking cold.
For a gluten-free option, use gluten-free breadcrumbs.

Prep Time: 15 minutes
Cook Time: 35 minutes
Category: Casserole
Method: Baking
Cuisine: American

Keywords: zucchini casserole, cheesy zucchini bake, easy side dish, summer squash recipe, baked zucchini, cheesy vegetable casserole