Step 1

Preheat oven to 400 degrees F (200 degrees C). Grease a 9-inch square baking dish.

Step 2

Beat eggs together in a bowl. Add hash browns and mix well; season with salt and pepper. Press hash brown mixture into the prepared baking dish.

Step 3

Bake in the preheated oven until crust is lightly browned, about 15 minutes.

Step 4

Mix vegetables, cream of mushroom soup, and chicken together in a bowl and spread over the crust; top with bread crumbs. Drizzle butter over bread crumb layer and season with salt and pepper.

Step 5

Bake in the preheated oven until heated through and bread crumbs are lightly browned, about 30 minutes.