Stuffed Mushrooms “Green Bean Casserole Style”

green bean casserole makeover
Stuffed Mushrooms “Green Bean Casserole Style

Mushroom Duxelles, Olive Oil Bechamel, Haricots Verts
Panko Crusted Fanny Bay Oysters, Truffle Salt, Frizzled Leeks

My friends in the 5 Star Makeover Cooking Group have made some major changes to the iconic green bean casserole this year. Major. For our monthly challenge we’ve taken the classic casserole recipe, originally made with green beans, mushroom soup, and fried onions and turned it ON ITS HEAD. There are soups, quiche, gnocchi, pancakes, and catfish ~ some have a Latin twist, another Asian, some are modern, some deconstructed, others retro. It’s a virtual cornucopia of casserole makeover creativity. And you can view all the incarnations of this most loved/hated Thanksgiving dish in the world over at Lazaro Cooks here.

Here I remake the casserole into a bite-sized morsel which conjures up of all the memories of mom’s holiday dish but with a fresh twist and pair it with another one of our holiday traditions ~ fresh oysters.

Original Recipe Ingredients:

  • cream of mushroom soup
  • milk
  • soy sauce
  • ground black pepper
  • green beans
  • canned french fried onions

green bean casserole makeover

In this makeover, mushrooms are stuffed with earthy mushroom duxelles and a rich olive oil bechamel flavored with tamari. Bright steamed haricots verts are sliced thin and sit atop the mushrooms. Panko crusted fresh Fanny Bay oysters are fried in canola oil until crisp, then seasoned with truffle salt. Finally, frizzled leeks add texture and are an update to those canned fried onions .

A Green Bean Casserole Makeover

green bean casserole makeover
Stuffed Mushrooms “Green Bean Casserole Style” Recipe

green bean casserole makeover, olive oil bechamel recipe
Olive Oil Bechamel with Tamari

  • 2 T. olive oil
  • 1 finely chopped shallot
  • 2 T.  flour
  • 2 c. non-fat milk
  • fresh ground pepper
  • 1 T. tamari

Saute shallot in olive oil until softened. Add flour, stirring, for about three minutes. Whisk in the milk and bring to a simmer, whisking until the mixture begins to thicken. Turn the heat to very low, and simmer, stirring often with a whisk and scraping the bottom and edges of the pan with a rubber spatula, for 10 minutes, until the sauce has thickened and lost its raw flour taste. Season with tamari and pepper. (Adapted from the NY Times here).

Stuffed Mushrooms: Remove stems from stuffing mushrooms and set aside. Rub mushroom tops with a small amount of olive oil and season with salt and pepper. Par-bake on a sheet pan stem-side-down at 350 for 10 minutes.  Remove from pan and dry off any accumulated water.

Mushrooms duxelles: Chop the reserved stems along with some whole mushrooms. Saute finely chopped onion and garlic in olive oil for a couple minutes then add the chopped mushrooms. Cook until browned then season with salt and pepper.

Place mushrooms back in pan stem-side-up. Fill caps with mushrooms duxelles and bechamel. Bake at 350 for 10 minutes until the mushrooms are soft and the bechamel is bubbly.

green bean casserole makeover, frizzled leeks
Meanwhile, fry thinly sliced leeks in olive oil until beginning to brown. Remove to a paper towel and season with salt.

Fanny Bay Oysters, how to fry oysters
Fresh Oysters from Fanny Bay ~ mild, briny, sweet and refreshing oysters from British Columbia.

green bean casserole makeover, fried oysters

Coat fresh shucked oysters with flour, shake off excess. Dip in a beaten egg, then press the oyster in panko breadcrumbs to cover. Fry oysters in canola oil until golden brown. Drain on paper towels, season with truffle salt.

green bean casserole makeover

Steam haricots verts until crisp tender. Slice in half lengthwise, then in have again. Place beans on the hot mushrooms, return to the oven for a couple minutes to make sure the entire morsel is hot.

green bean casserole makeover

Place mushrooms on a serving platter. Top with the panko crusted oysters and finish with the frizzled leeks.

green bean casserole makeover
A bite-sized “green bean casserole” paired with another one of
our holiday traditions ~ fresh oysters!

We hope your Thanksgiving was warm, well-seasoned, well-prepared, and wonderful!

18 thoughts on “Stuffed Mushrooms “Green Bean Casserole Style””

  1. You are always a master (ahem, mistress, of course 😉 ) of thinking outside the box, LL! I love that you added fresh oysters – that was brilliant. Thanks for coming up with such a fun theme for us to work with this month!

  2. Oh yum: this must be one of the most original and appetizing recipes I have ‘met’ for ages. These look so moreish!! Bookmarked already for sometime during the Christmas season 🙂 !

  3. Don’t do oysters but this looks divine. Something my parents would really enjoy, especially Mami. She loves mushrooms stuffed with anything! 🙂 Lovely dish.

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