To prepare wine sauce, saute mushrooms, garlic and onion in melted butter or margarine in saucepan until mushrooms are tender. Add flour, stirring until blended; cook over medium heat for 1 minute, stirring constantly. Blend in tomato paste, salt and pepper; stir in wine and stock until well-blended. Simmer 20 minutes, stirring occasionally. Adjust seasoning if necessary.

Sprinkle steaks with lemon pepper. Grill steaks over moderately hot coals for 5 to 8 minutes per side for medium rare, or to a desired degree of doneness. Serve with mushroom-wine sauce.

Source: BigOven