Sailor Sandwiches with Caesar Mayo Recipe

Name: Sailor Sandwiches with Caesar Mayo Recipe
Ingredients: 1/4 cup 2% milk; 1/4 cup cornmeal; 2 tbsp king arthur unbleached all-purpose flour; 1 tbsp grated parmesan cheese; 1/2 tsp dried oregano; 1/4 tsp garlic powder; 1/4 tsp salt; 1/4 tsp pepper; 2 cod or haddock fillets (6 oz each); 1 tbsp butter, melted; caesar mayo:; 4 tsp grated parmesan cheese; 4 tsp mayonnaise; 4 tsp olive oil; 1 tbsp lemon juice; 1 tbsp worcestershire sauce; 3/4 tsp garlic powder; 1/2 tsp ground mustard; 1/4 tsp hot pepper sauce; sandwiches:; 2 kaiser rolls, split and toasted; 2 lettuce leaves; 1 small tomato, thinly sliced; 2 slices sweet onion