Mom's fish creole

This is a recipe based off a memory from a dish my mom used to make and called 'fish creole'. Internet searches yielded no such recipe that resembled my memory's, so improv it was.

3 Tbsp butter
2 Tbsp flour
1/2 small onion, chopped
2 ribs celery, chopped
1/2 green pepper, chopped
1 lg can chopped tomatoes
1/2 tsp creole seasoning
1 tsp hot sauce
4-6 dashes Worcestershire sauce
1/2 tsp sugar
salt
pepper
1 lg white fish filet, cut into 1 inch pieces
3-4 sardines (opt, but good!)
cooked white rice

In a heavy saucepan over medium heat, melt butter. Stir in flour and cook for about 2 minutes. Add onion, celery and green pepper. Cook until onion is soft, about five minutes. Add tomatoes, creole seasoning, hot sauce, Worcestershire, sugar and black pepper. Cover and simmer 15 minutes. Stir in sardines. Add fish pieces. Cover and cook another 10 minutes. Taste and season as needed.

Serve ove hot rice.