Good-Cooking - Catfish Jambalaya

Ingredients

• 2 cups chopped onion
• 1/2 cup chopped celery
• 1/2 cup chopped green pepper
• 2 garlic cloves, minced
• 1/4 cup butter or margarine (optional)
• 1 (10 ounce) can diced tomatoes and green chiles, undrained
• 1 cup sliced fresh mushrooms
• 1/4 teaspoon cayenne pepper
• 1/2 teaspoon salt (optional)
• 1 pound catfish fillets, cubed