Tomato mushroom sauce: Saute the garlic and shallots in olive oil until tender, about 4 minutes. Add the corn, mushrooms, and demi-glace and bring to a simmer. Reduce by 1/4. Add tomatoes and remove from heat. Swirl in whole butter and add salt and pepper, to taste.
Tom's Steak Fries: Place potato in salted, cold water and bring to a boil. Reduce heat and simmer for approximately 20 minutes. Drain and cool potato. Quarter and deep-fry until golden brown. Season with salt and pepper.
To assemble dish: Place grilled steak in the center of the dish. Spoon vegetables and sauce over the steak. Top with spinach and onion and drizzle with A1 dressing.
Mix together all of the ingredients, to taste.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.