1.
In a small bowl, whisk together the vinegar, olive oil and soy sauce. Set aside the vinaigrette.
2.
In a sauté pan on high heat, coated lightly with bacon fat, add the shallots, mushrooms and thyme. Saute until soft about 4 minutes.
3.
Add vinaigrette and the bacon and stir until hot. Add salt and pepper to taste. Pour ¾ of the vinaigrette on the salad and toss to coat. Toss with more vinaigrette if necessary. Save the remaining vinaigrette for garnish.
4.
Place toast on 4 large plates and top with warm salad. Drizzle with remaining vinaigrette and serve immediately.