/4 t dry mustard Cook bacon until crisp; drain on paper towels, then crumble. Reserve 2 tablespoons drippings. Combine spinach, rice, mushrooms, tomatoes and onion in large mixing bowl. Combine vinegar, sugar, salt, pepper, mustard, reserved drippings and 2 tablespoons water in small saucepan;heat just to boiling. Pour dressing over salad; toss lightly. Garnish with bacon;serve immediately. Makes 4 servings. FOOD FACTS: Each serving, calories 133, protein 5.4g, fat 5g, carbohydrate 17.6g, dietary fiber 2.2g, cholesterol 8 mg, sodium 475 mg. From the files of Al Rice, North Pole Alaska. Feb 1994