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Homemade Green Bean Casserole

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Green Bean Casserole is a comfort food side dish with homemade creamy mushroom soup, tender green beans, and crispy French fried onions. This casserole recipe is the perfect addition to your meal, and no one can taste it’s gluten and dairy free.

When I was growing up, this dish was one of my must-haves at every extended family get-together and holiday meal. And thankfully my mom prepared it often for our family meals too. I could never get enough of this meal– it was easily one of my most coveted comfort meals. But then after going gluten and dairy free, I was devastated that I could not enjoy this delicious dish for years. Thankfully as new and safe products hit the grocery store shelves, more recipes like these are possible.

A baking dish with creamy mushroom soup. green beans, and crispy French fried onions on top.

And what’s not to love about those French fried onions?! I like my green bean casserole like I enjoy my apple crisp— with extra topping. So it’ll come as no surprise I have almost doubled the fried onions in this recipe.

green bean casserole ingredients + notes

  • olive oil
  • dairy free butter— I use Earth Balance Buttery Sticks ; this is soy and egg free too
  • onion
  • garlic
  • mushrooms— Baby Bella or White
  • gluten free soy sauce— San-J Gluten Free Soy Sauce available here or Coconut Aminos; a soy free option
  • corn starch or arrowroot powder
  • vegetable or chicken stock
  • dairy free half and halfSilk Dairy Free Half and Half Alternative; this is processed in a plant that also processes tree nuts, milk, egg, and soy. They state they follow stringent allergen quality procedures. Almond milk can also be substituted.
  • salt
  • pepper
  • gluten free French fried crispy onions— I order the Natural Earth Product brand from Amazon here. They are vegan and certified gluten free; soy and egg free too. These taste just like traditional fried onions and no one can tell they’re gluten and dairy free. You’ll love them topped on hamburgers too.
  • optional— 2 slices of crispy, chopped bacon
  • our family isn’t a huge fan of mushrooms. For this recipe I slice them into fairly small pieces. Feel free to leaves your mushrooms in larger slices if that appeals to you.
  • this recipe can easily be doubled for a 9×13″ baking pan
  • and you can prepare the mushroom and green bean mixture ahead of time and store it in the refrigerator overnight. Then, sprinkle the French fried onions over the top just before placing it in the oven.
A skillet with diced onions and minced garlic.
A skillet with diced onions, minced garlic, and chopped mushrooms.
The mushroom mixture starting to thicken up with cornstarch and liquids.
A very thickened homemade mushroom soup.
A baking dish with creamy mushroom soup. green beans, and crispy French fried onions on top.

more classic recipes

  • creamy mashed potatoes— this easy potato dish perfectly complements the green bean casserole to complete any meal
  • crock-pot stuffing— here is the easiest and yummiest way to enjoy stuffing, and you can feed this to a crowd without using precious oven space
  • bacon wrapped tater tots— you will love this combo as an appetizer, side, or even as the main meal. These tots perfectly feed everyone as a naturally gluten and dairy free meal.
A baking dish with creamy mushroom soup. green beans, and crispy French fried onions on top.

lastly

Let’s point out this side dish isn’t only a must-have; it’s also a favorite. And it’s a classic dish everyone loves seeing at the dinner table. What makes this recipe even better is you can’t tell it’s gluten and dairy free– making this a win-win for everyone.

Likewise you will find so many more delicious gluten and dairy free recipes on my website. As well several are soy free and egg free too.

Be sure to follow along on my Instagram and Facebook pages, and sign up below for my monthly emails. And I promise not to spam you with boring or repetitive news, but instead with the best of everything gluten and dairy free.

Eat well and feel well,

Jill

Homemade Green Bean Casserole

Course: Side Dish
Keyword: Dairy Free, egg free, Gluten Free
Servings: 6 servings
Author: Eating Gluten and Dairy Free

Ingredients

  • 1 tbsp olive oil
  • 1 tbsp dairy free butter
  • 1 small onion, finely chopped
  • 2 garlic cloves, minced
  • 8 oz mushrooms, cleaned, stems removed, and finely chopped Baby Bella or White
  • 1 tbsp gluten free soy sauce Coconut Aminos works as a soy free substitute
  • 2 tbsp cornstarch or arrowroot powder
  • ½ c vegetable or chicken stock
  • ½ c dairy free half and half, almond milk also works see suggestion in post
  • ¼ tsp salt
  • ¼ tsp pepper
  • 2 14.5 oz cans canned green beans, drained
  • c gluten free French fried onions, more if desired see link in post
  • optional: 2 slices of crispy bacon, chopped

Instructions

  • Preheat the oven to 350°F.
  • Over the stovetop in a medium saucepan, heat the olive oil and dairy free butter.
  • Then add in the onion and garlic; sauté until onion is translucent.
  • Next add in sliced mushrooms and cook 5-7 minutes, stirring often.
  • Mix in the gluten free soy sauce.
  • In a small bowl whisk the half and half, chicken stock, salt, pepper, and cornstarch. Add to the mushroom mixture.
  • Cook over medium heat, occasionally stirring while mixture thickens, 10 to 15 minutes.
  • Add in drained green beans, bacon and mix gently to coat.
  • Evenly spread into a 2 quart baking dish.
  • Continue towards baking or place saran wrap on top and place in the refrigerator overnight.
  • Sprinkle French fried onions evenly over the top of the green bean mixture and bake for 10-12 minutes.
  • Remove from the oven and allow the dish to set for 10 minutes before serving.
  • Store leftovers covered and in the refrigerator.

Notes

You can substitute 2 lbs fresh green beans, washed and ends trimmed for two 14.5 oz cans of green beans. 

This recipe was inspired by a similar recipe found at Crunchy Creamy Sweet. I altered the ingredient amounts and made the needed substitutes for a safe gluten and dairy free recipe.

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