Dijon Potato Salad with Mushrooms and Onions

INGREDIENTS

- pound small red potatoes (, quartered)

1/2 tsp

salt

3 tbsp

olive oil

package ((8-ounces) button mushrooms, halved)

small yellow onions (, thinly sliced)

1/4 tsp

fresh thyme

salt and fresh ground pepper (, to taste)

Freshly Shredded Parmesan Cheese (, for garnish)

1/4 cup

olive oil

3 tbsp

dijon mustard

1 tsp

white vinegar

salt and fresh ground pepper (, to taste)