Topping:
2 slices hearty white sandwich bread, torn into pieces
¾ cup grated Parmesan cheese
4 tablespoons unsalted butter, melted
1 garlic clove, minced
Filling:
10 ounces chopped broccoli
3 cups cooked rice
⅔ cup onion chopped
½ cup celery chopped
½ cup butter
1 can mushroom soup
1 cup milk
8 ounces sharp cheddar cheese, grated
⅛ teaspoon cayenne pepper
salt to taste
Topping:
Adjust oven rack to middle position and heat oven to 350°F. Grease 13- by 9-inch baking dish. Pulse bread, ¼ cup Parmesan, and melted butter in food processor until coarsely ground. Add garlic. Set aside.
Filling:
Cook broccoli in either microwave or stovetop. Drain if necessary.
Sauté the onion and celery in butter.
In a casserole dish, combine the onion, celery, and butter with the remaining ingredients. Top with topping.
Bake at 350°F for 30 minutes.