Marinate steak overnight in dressing. When ready to cook, drain meat and cut into strips. Cook meat with bacon on large griddle or in heavy skillet 4 minutes, sprinkling with small amount oil. Season with Worcestershire and some of garlic salt while cooking.
Cook poblano chiles and onion alongside meat on griddle or in separate skillet for same amount of time, sprinkling with oil and remaining garlic salt. Add tomatoes to vegetables and cook about 2 minutes.
Place yellow chiles on griddle or in skillet and cook until brown in spots. Dip green onions in oil, place on griddle or in skillet and char lightly.
Combine meat and vegetables except green onions on sizzling hot griddle or on heated platter. Arrange green onions over top. Squeeze lemon juice over before serving. Accompany with tortillas and salsa. Makes 4 servings.
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