From June 2019 Docklines.

Picture and recipe from the 2 seasons. 

Ingredients

• 1 1/2 to 2 pounds halibut
• 1 pound shrimp, shelled, cooked, and chopped
• 1/4 cup crushed saltine crackers
• 1/2 cup green onions, chopped and divided
• 7 tablespoons butter
• 1 16-ounce can mushrooms, drained
• Pepper to taste
• 3 tablespoons flour
• 1 3/4 cup milk
• 1/3 cup chicken broth
• 1 cup shredded Swiss cheese

Instructions

1. Preheat oven to 400 degrees.
2. Cut halibut into serving size pieces.
3. Saute mushrooms and onions in 4 tablespoons butter.
4. Remove from heat, and stir in crackers, pepper, and shrimp.
5. Place a layer of halibut in a buttered 9 x 12 inch baking pan.
6. Top with shrimp filling.
7. Add another layer of halibut.
8. Melt 3 tablespoons butter and add flour, milk, and broth to make a sauce. Cook, stirring frequently, till this mixture has thickened. Pour over fish.
9. Cover and bake 25 minutes.
10. Remove from oven and add Swiss cheese and 1/4 cup chopped green onions (optional) to top. Cover and return to oven for 15 to 20 minutes more.
11. Serve hot.