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French Onion Green Bean Casserole Recipe

Main Dishes

This French Onion Au Jus Green Bean Casserole takes a holiday side dish staple and gives it a rich, restaurant-worthy upgrade. Tender green beans layered in a savory caramelized onion gravy and topped with crispy fried onions that crunch with every forkful — it is the dish that disappears first every Thanksgiving.

Prep Time
10 min
Cook Time
45 min
Servings
6-8
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Ingredients

2 tbsp unsalted butter
1 large yellow onion, thinly sliced
1/2 tsp salt
1/4 tsp black pepper
1 lb fresh green beans, trimmed
2 cups water
1 pkg Pioneer® Au Jus Gravy Mix
1/2 cup shredded Swiss cheese
1 cup crispy fried onions

Make this French Onion Green Bean Casserole with Pioneer Au Jus Gravy Mix for the deeply savory, from-scratch flavor that turns a simple side dish into the one everyone asks about.

Instructions

  1. Preheat and Prep Dish

    Preheat the oven to 375°F. Lightly grease a 9×9-inch baking dish with cooking spray and set aside.

  2. Caramelize Onions and Sauté Beans

    Melt butter in a large skillet over medium-low heat. Add onions, salt and pepper, and cook, stirring occasionally, until golden-brown and caramelized, about 20 minutes. Remove from the skillet and wipe clean. Add green beans and saute for an additional 5-10 minutes, or until crisp-tender.

  3. Make the Au Jus Gravy

    Meanwhile, combine water and Pioneer Au Jus Gravy Mix in a saucepan and whisk until smooth. Bring mixture to a boil over medium heat, stirring frequently. Reduce heat to low and simmer for 1 minute until thickened. Remove from heat and set aside.

  4. Combine and Transfer Filling

    Pour gravy over green bean mixture. Add cheese and stir to combine. Transfer mixture to the prepared baking dish in an even layer.

  5. Top and Bake

    Top evenly with fried onions and bake until golden-brown and edges are bubbling, about 15-20 minutes. Let cool for at least 10 minutes before serving.

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