Step 1

To a pot of boiling water, add the diced zucchini and cook for 3 minutes. Drain and cool.

Step 2

In a bowl, combine the parboiled zucchini, mayonnaise, cheddar cheese, eggs, pepper, and garlic powder.

Step 3

Pour into a greased 1 1/2 quart baking dish.

Step 4

In a bowl, combine the Panko breadcrumbs with melted butter. Pour breadcrumbs over the top of the casserole.

Step 5

Bake, uncovered, at 350°F for 35 minutes, or until zucchini is fork tender.