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    Home » Casseroles

    Fresh Green Bean Casserole

    Published: Nov 27, 2019 · Modified: May 26, 2023 by Tammy Circeo · This post may contain affiliate links · Leave a Comment

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    Fresh Green Bean Casserole with homemade onions on top

    Green Bean Casserole is an old-fashioned dish that has been on Thanksgiving tables across our country for many years. Traditionally, it is made with convenience foods like canned beans, canned soup, and canned fried onions. What if we could enjoy it using fresh ingredients? It's totally possible! And yes, Fresh Green Bean Casserole is definitely an improvement.

    Fresh Green Bean Casserole with homemade fried onions on top in a pottery casserole dish

    And it just makes sense that we would use fresh green beans, right? Trim them and cut them in bite-size pieces, then drop them in salted boiling water for about 4 minutes. Rinse them with cold water to stop them cooking.

    Trimming green beans with a large chef's knife
    Trimmed green beans in a large bowl

    Mushroom Gravy

    In the traditional recipe, this part is a canned soup that is concentrated and goopy. Not really appetizing. So let's step up the game a little ... or a lot! ... and start with sauteeing onions and mushrooms together.

    Chopped onions in a bowl with mushrooms sitting beside ready to be sliced and chopped
    Sliced and chopped mushrooms on the cutting board ready to be cooked

    Once the onions and mushrooms are done, add a bit more butter, then flour to thicken. Stir it around to coat the mushrooms, then add milk to make a gravy. If your gravy gets too thick, simply add more milk.

    Mushroom gravy in a cast iron skillet with a whisk

    Mix the mushroom gravy with the blanched green beans and put the mixture in a baking dish.

    Green beans mixed with the mushroom gravy in a casserole dish

    Fresh Fried Onions

    The topping is fried onions and very easily my favorite part of the casserole. The canned variety are heavily battered and tend to be greasy. Again, not appetizing, so we can easily make them ourselves!

    Cut thin slices of onions and shallots.

    Sliced onions and shallots on cutting board

    I coated them with corn meal, corn starch, and spices, then fried them quickly in oil. You can also use chickpea flour and potato starch.

    Sliced onions and shallots in a large bowl, tossed with corn meal, corn starch, and spices

    They turn out way better than the canned ones! You'll want to fry more than you need because you'll want to snack on them!

    Fried onions being removed from the oil with a mesh strainer

    Bake the Fresh Green Bean Casserole for a few minutes, then top it with the fried onions before serving.

    Fresh fried onions on top of the green bean casserole

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    Recipe

    Fresh Green Bean Casserole with homemade fried onions on top in a pottery casserole dish

    Fresh Green Bean Casserole

    Tammy Circeo
    This casserole has been on Thanksgiving tables across our nation for many years and I think it's way past time to give it a homemade, from scratch update!
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 30 minutes mins
    Cook Time 20 minutes mins
    Total Time 50 minutes mins
    Course Side Dish
    Cuisine American

    Ingredients
      

    FOR THE BEANS

    • 1¼-1½ pounds fresh green beans
    • Salt for the boiling water
    • 1 large pot of boiling water

    FOR THE MUSHROOM GRAVY

    • 6 Tablespoons butter divided (See notes)
    • 1 medium onion about ¼ pound
    • 8 ounces mushrooms sliced and chopped
    • 4 Tablespoons flour or gluten-free 1:1
    • 2 cups whole milk See notes
    • Salt and pepper to taste

    FOR THE FRIED ONIONS

    • 1 medium onion
    • 3 shallots
    • ½ cup yellow corn meal See notes
    • 2 Tablespoons corn starch See notes
    • 1 teaspoon paprika
    • ½ teaspoon granulated garlic
    • Salt and pepper to taste
    • oil for frying

    Instructions
     

    FOR THE BEANS

    • Put a large pot of salted water on to boil. Trim the beans, cut them into bite-size pieces, then put them in the boiling water.
      Allow to cook for 4-5 minutes, drain, and rinse with cold water. Set aside in a large mixing bowl.

    FOR THE MUSHROOM GRAVY

    • In a large skillet over medium heat, melt 2 Tablespoons butter. Add onion, and sauté until it begins to soften, about 4 minutes. Add mushrooms, and cook until softened, about 8 minutes. Season with salt and pepper.
    • Move the onion mushroom mixture to the sides of the skillet, add 4 Tablespoons of butter and allow it to melt. Add ¼ c. flour, whisk constantly until mixture begins to turn golden, about 2 minutes. Mix it with the mushrooms, then pour in the milk, and continue whisking until mixture has thickened, about 3 minutes. Stir in salt and pepper to taste. Remove from heat, and let cool to room temperature, stirring occasionally. Pour over beans, and toss to combine.
    • If you are making the casserole ahead of time, cover it at this point and refrigerate it. Remove it from the refrigerator about an hour before baking.
    • Bake at 350°F (180°C) for 20-30 minutes until it's heated through and the top is starting to bubble and brown.

    FOR THE FRIED ONIONS

    • Thinly slice the onions and shallots and place them in a large bowl. Add the corn meal, corn starch, and spices. Season with salt and pepper.
    • Heat oil over high heat, then working in batches, fry till golden brown. Drain on paper towels or brown paper bags.
    • When the casserole has baked, top it with the onions before serving.

    Notes

    Gluten-free flour blend works just fine for the gravy. 
    For the fried onions, you can use chickpea flour and potato starch if you prefer. 
    To make the casserole dairy-free, use oil to cook the onions and mushrooms or a butter substitute and a neutral nut milk like cashew or almond milk. 
    Keyword casserole, green bean casserole, green beans
    Tried this recipe?Let us know how it was!
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    I have always loved nurturing and feeding people. My cooking style is influenced by my Southern parents, time living in Europe, and the foods available in the Pacific Northwest, where I lived for over 20 years. I cook from scratch and strongly support local farms and producers, believing that food plays a pivotal role in our quality of life.

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