Preheat oven to 400° F.
Place 1 tablespoon olive oil in skillet over medium-high heat. Add mushrooms, onion and garlic; sauté until tender, about 5 minutes.
Add grape tomatoes and crushed tomatoes; cook 3 more minutes until heated through.
While vegetables are cooking, add butter and remaining olive oil to ovenproof skillet over medium-high heat. Season both sides of catfish with Italian herbs, salt and pepper. Carefully place catfish in skillet; cook 3 minutes. Turn fillets, and cook another 3 minutes.
Slowly spoon vegetable mixture onto fillets in skillet. Place in oven and cook 5 minutes. Remove from oven; sprinkle with Italian parsley. Serve with your favorite pasta.