Potato Mushroom Pie with Caramelized Onions

Potato Mushroom Pie with Caramelized Onions

Recipe by Idaho Potato Commission

YIELD: 1 pie, 6-8 servings

For mushroom pie:
3 cups prepared mashed potatoes
1 cup button mushrooms, stems intact, sliced 1/3” thick
½ cup portabello mushrooms, cut 1/3” thick
1/3 cup white onion, grated
1 tsp. fresh lemon juice
3 Tbsps. butter
½ to ¾ cup sour cream
¼ cup and another ¼ cup grated Parmesan cheese
salt and pepper, to taste


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