Portabella Mushroom And Vidalia Onion Gratin

Name: Portabella Mushroom And Vidalia Onion Gratin
Yield: 8
Ingredients: 1 pound baby portabella mushrooms (sliced); 1 x-large vidalia onion sliced into small wedges [or 2 medium]; olive oil; salt & black pepper; 3 cloves garlic (minced); 2 tsp fresh thyme; 3 Tbsp butter (divided); 1 Tbsp red wine vinegar; 3 finely chopped green onions; 2 1/2 Tbsp all purpose flour; 1 1/2 cups whole milk; 2 cups shredded muenster cheese (divided); 2 Tbsp chopped Italian parsley (divided); For the crumb topping:; 1 Tbsp butter (melted); 1 1/2 cups fresh bread crumbs; 1 Tbsp chopped Italian parsley

Portabella Mushroom And Vidalia Onion Gratin was pinched from <a href="https://www.melissassouthernstylekitchen.com/portabella-mushroom-vidalia-onion-gratin/" target="_blank" rel="noopener">www.melissassouthernstylekitchen.com.</a>

INGREDIENTS

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1 pound baby portabella mushrooms (sliced)

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1 x-large vidalia onion sliced into small wedges [or 2 medium]

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olive oil

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salt & black pepper

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3 cloves garlic (minced)

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2 tsp fresh thyme

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3 Tbsp butter (divided)

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1 Tbsp red wine vinegar

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3 finely chopped green onions

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2 1/2 Tbsp all purpose flour

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1 1/2 cups whole milk

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2 cups shredded muenster cheese (divided)

•

2 Tbsp chopped Italian parsley (divided)

•

For the crumb topping:

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1 Tbsp butter (melted)

•

1 1/2 cups fresh bread crumbs

•

1 Tbsp chopped Italian parsley

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