Filet Fish Sandwich

This is the first time I have ever made this sandwich and the first time I didnt have it at a fast food resturaunt. I thought it came out pretty good. I would probably have done a few things differently like using an egg instead of just butter to help coat the fish. I would also have made my own breadcrumbs with wholewheat bread just so the sandwich had more fiber, but all in all it was a good first attempt at a fish filet sandwich. Im thinking I will do it again sometime. Ingredients
4 fllets fish -flounder, orange roughy, haddock, even tilapia
1 tbsp lemon
1/2 tsp paprika
3 tbsp butter
1 1/2 tbsp flour
1/2 cup milk
1/4 cup breadcrumbs
1 tbsp parsley
place fish in greased pan and sprinkle with lemon, paprika, and dash of salt and pepper
in sauce pan heat 1 tablespoon butter, flour, s and p and add milk, stirring all the while until sauce is thick
pour over fish
melt remaining butter add to breadcrumbs and coat fish
bake fish at 350 for 35 minutes