Baked Gefilte Fish

Name: Baked Gefilte Fish
Ingredients: 2 pounds halibut, sole, or sea bass fillets; 2 large eggs; 2 medium onions, finely chopped; 1½ teaspoons salt; ½ teaspoon ground pepper, preferably white; 1 teaspoon sugar (optional); 2 ribs celery, finely chopped; 2 medium carrots, grated; 2 tablespoons vegetable oil (optional); ¼ cup matzo meal; Paprika, to taste