Recipe courtesy of Food Network Kitchen
Save Recipe Print
Green Bean-Mushroom Casserole
Total:
55 min
Active:
20 min
Yield:
6 to 8 servings
Level:
Easy
Total:
55 min
Active:
20 min
Yield:
6 to 8 servings
Level:
Easy

Ingredients

Directions

Make the casserole: Melt the butter in a large Dutch oven over medium heat. Add the diced onion; cook, stirring, until softened, 7 to 10 minutes. Add the mushrooms; saute until softened and most of the liquid has evaporated, 10 minutes. Sprinkle in the flour; cook, stirring, 1 minute. Add the broth and half-and-half. Bring to a boil, then reduce the heat to medium low and simmer until thickened, about 5 minutes.

Bring a pot of salted water to a boil. Add the green beans and cook until crisp-tender, 7 to 10 minutes. Drain; shake off any excess water and add to the mushroom sauce. Cook, stirring occasionally, until the beans are very tender, 10 to 12 minutes. Season with salt and pepper.

Make the topping: Soak the sliced onion in the buttermilk, 5 minutes. Combine the flour and 1 teaspoon salt in a medium bowl. Heat 2 to 3 inches vegetable oil in a large pot until a deep-fry thermometer registers 350 degrees F. Working in batches, drain the onion, toss with the flour and shake off the excess, then fry until golden, 4 to 6 minutes. Drain on paper towels.

Transfer the green bean mixture to a 4-quart baking dish and top with the fried onion. (The casserole and topping can be made up to 2 hours ahead; refrigerate the casserole. Bring to room temperature; reheat at 350 degrees F, 30 minutes. Top with the fried onion; bake 5 more minutes.)

Photograph by Chris Court

Trending Videos 6 Videos

Get the recipe

Watermelon and Cucumber Salad 00:42

This refreshing summertime salad can be made with just a few ingredients.

IDEAS YOU'LL LOVE

Best Ever Green Bean Casserole

Recipe courtesy of Alton Brown

Green Beans and Tomatoes

Recipe courtesy of Ree Drummond

Leek and Potato Casserole

Recipe courtesy of Ree Drummond

Sunny's Tuna Noodle Casserole

Recipe courtesy of Sunny Anderson

Chicken Cordon Bleu Casserole

Recipe courtesy of Ree Drummond

Sesame Green Beans

Recipe courtesy of Rachael Ray

Tom's Green Beans with Shallots

Recipe courtesy of Valerie Bertinelli

Soy Glazed Green Beans

Recipe courtesy of Guy Fieri

Green Beans with Lemon and Garlic

Recipe courtesy of The Neelys

Browse Reviews By Keyword

          Dig In

          Food Network Apps

          In the Kitchen

          Get over 70,000 FN recipes on all your mobile devices.

          Facebook Messenger

          Ask our bot for recipes, meal ideas and daily food trivia.