Preheat oven to 200°C.
Whisk together the Knorr Creamy Cheese Vegetable Bake and boiling water, and set aside.
Combine the Stork Margarine, Robertsons Italian Herb and Robertsons Paprika in a bowl. Brush the steaks with the seasoning mixture. Place on a lined baking tray.
In a separate baking dish, add the onion, baby marrow and red pepper. Pour over creamy cheese Vegetable Bake mix.
Bake both the steaks and the vegetables for 10-15 minutes, or until vegetables are golden and steak is cooked as desired.