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Healthy Green Bean Casserole
4.4 from 123 votes

Healthy Green Bean Casserole

Healthy Green Bean Casserole features fresh green beans topped with crispy baked onions made from thinly sliced onions coated in oat flour and panko crumbs. The creamy sauce blends soaked cashews and almond milk with mushrooms, garlic, and seasonings, thickened with oat flour and vegetable broth. This casserole offers a wholesome twist on the classic with a creamy texture and crunchy onion topper.

Prep Time
20 mins
Cook Time
58 mins
Total Time
1 hr 18 mins
Servings: 6
Calories: 213 kcal
Course: Lunch
Cuisine: American

Ingredients

Crispy Baked Onions
  • 2 onion thinly sliced, medium
  • ¼ cup oat flour
  • 2 tablespoons panko bread crumbs gluten-free, if needed
  • 1 teaspoon salt sea salt
  • cooking spray nonstick
Green Beans and Sauce
  • ½ cup cashews soaked
  • 1 cup almond milk or milk of choice, unsweetened
  • 24 oz Green bean rinsed, trimmed and halved, fresh
  • 2 Tablespoons vegan butter
  • 12 oz portobello mushrooms trimmed and cut into 1/2-inch pieces, baby
  • 1 teaspoon salt sea salt
  • 1 teaspoon black pepper ground
  • 3 cloves garlic minced
  • ¼ teaspoon ground nutmeg
  • 2 Tablespoons oat flour
  • 1 cup vegetable broth
  • 1 teaspoon tamari or soy sauce, low-sodium

Instructions

    Cup of Yum
  1. Add cashews to a bowl with water for soaking. Let soak for at least 30 minutes.
  2. Preheat the oven to 475°F.
  3. Combine the onions, flour, panko and salt in a large mixing bowl and toss to combine. Coat a sheet pan with nonstick cooking spray and evenly spread the onions on the pan. Place the pan on the middle rack of the oven and bake until golden brown, approximately 25 minutes, tossing every 10 minutes. Once done, remove from the oven and set aside until ready to use. Reduce oven temperature to 375°F.
  4. While the onions are cooking, prepare your green bean mixture.
  5. Bring a large pot of water to a boil. Add the beans and blanch for 5 minutes. Drain in a colander and immediately plunge the beans into a large bowl of ice water to stop the cooking. Drain and set aside in large bowl.
  6. Drain cashews and add to a blender with almond milk. Blend until smooth and creamy and set aside.
  7. Melt the butter in a large skillet over medium-high heat. Add the mushrooms, salt and pepper and cook, stirring occasionally for 4 to 5 minutes. Add the garlic and nutmeg and continue to cook for another 1 to 2 minutes. Sprinkle the flour over the mixture and stir to combine. Cook for 1 minute. Add the broth and tamari, simmer for 1 minute.
  8. Decrease the heat to medium-low and add the cashew cream. Cook until the mixture thickens, stirring occasionally, approximately 6 to 8 minutes.
  9. Remove from the heat and pour sauce into a large bowl with the green beans and ½ cup of the crispy baked onions. Place green bean mixture into a 8x8 baking dish and top with the remaining crispy baked onions. Place into the oven and bake until bubbly and warm throughout, approximately 15-20 minutes. Remove and serve immediately.

Notes

  • Store leftovers in an airtight container in the refrigerator for up to 5 days.
  • To freeze: assemble the casserole without baking, cover tightly in a freezer-safe dish, and freeze for up to 2 months.
  • Bake the frozen casserole covered or uncovered until heated through when ready to serve after freezing.

Nutrition Information

Serving 1/6 of recipe Calories 213kcal (11%) Carbohydrates 26g (9%) Protein 9g (18%) Fat 10g (15%) Sodium 690mg (29%) Fiber 6g (24%) Sugar 7g (14%)

Nutrition Facts

Serving: 6 Serving

Amount Per Serving

Calories 213

% Daily Value*

Serving 1/6 of recipe
Calories 213kcal 11%
Carbohydrates 26g 9%
Protein 9g 18%
Fat 10g 15%
Sodium 690mg 29%
Fiber 6g 24%
Sugar 7g 14%

* Percent Daily Values are based on a 2,000 calorie diet.