Baked Halibut Avocado

This was in a flyer at work today. I haven't tried it yet, but it's at the top of my list. Sounds delicious.

• Ready In: 55 mins
• Serves: 4-6

Ingredients

• 2  lbs halibut fillets
• 2 (4 ounce) cans  sliced mushrooms, drained (or 8 oz fresh)
• 1⁄4 cup butter
• 1⁄4 cup onion, chopped
• 1  cup  soft breadcrumbs
• 1⁄2 teaspoon salt
• 1⁄4 teaspoon black pepper
• 1⁄4 teaspoon  celery salt
• 1⁄2 cup fresh parsley, chopped
• 1  egg, beaten
• 1  tablespoon lemon juice
• 1  large avocado
• 1⁄2 cup mozzarella cheese, shredded (or monterey jack)

Directions

1. Preheat oven to 350°.
2. Cut halibut fillets into serving size pieces.
3. Lay the halibut single layer into a greased baking dish.
4. Melt the butter in a pan, add mushrooms and onions, and saute.
5. When the onions are tender, add the bread crumbs, salt, pepper, parsley, and celery salt and mix well.
6. Combine the egg and lemon juice in a dish and brush the fish with it.
7. Peel and slice the avocado and arrange over the fish.
8. Top with bread crumb mixture.
9. Sprinkle with cheese.
10. Bake for 35 minutes or until fish flakes easily when tested with fork.