Preheat oven to 350F. Saute onion and jalapeno pepper in butter for 5 minutes. Add drained mushrooms and cook for 5 more minutes. Remove from heat. In container mix catsup, mustard, mayonnaise, red wine vinegar, Lea & Perrins and Italian dressing. Mix well. Add garlic salt and Tabasco. Arrange fish in Pam-sprayed Pyrex baking pan. Spoon onion jalapeno mushroom mixture over fish. Pour mixture in container over the entire dish. Bake 40 minutes.
Cajun Country -- New Iberia, Louisiana