Keto Recipes

Green Bean Casserole Recipe

Recipe Disclaimer: Nutritional information is provided as a general estimate only. Actual values may vary based on ingredients used, portion sizes, and cooking methods. Always check ingredient labels for allergen information.

Healthy Green Bean Casserole

  • Level: Easy
  • Yield: 6 servings
  • Nutritional Analysis Per Serving: Calories 120, Total Fat 7g, Dietary Fiber 4g
  • Total: 37 min
  • Prep: 15 min
  • Cook: 22 min

Onion Straws

  • 1/2 cup very thinly sliced onion
  • 1/4 cup soy flour
  • 1/2 teaspoon kosher salt
  • 1/8 teaspoon freshly ground black pepper
  • 1/8 teaspoon garlic powder

Casserole

  • 1 pound green beans, ends trimmed
  • 1 tablespoon vegetable or canola oil
  • 1/2 cup thinly sliced onion
  • 8 ounces cremini mushrooms, rinsed and sliced
  • 1 1/2 teaspoons kosher salt
  • 1/8 teaspoon garlic powder
  • 1/8 teaspoon freshly ground black pepper
  • 1/2 cup no-sugar, low-sodium chicken broth
  • 1 teaspoon chopped fresh thyme leaves, plus a few sprigs for garnish
  • 1/2 cup sour cream

Special equipment:

  • 10-inch glass pie pan

Instructions

  1. Preheat oven to 350F.
  2. Prepare the Onion Straws: Mix all ingredients in a small bowl, toss to coat evenly, and spread in a single layer on a baking sheet. Set aside.
  3. Prepare the Casserole: Bring a small pot of salted water to a boil. Cook green beans until tender-crisp, about 5 minutes. Drain, cool in ice water, drain again, and place in a bowl.
  4. Warm oil in a large skillet over medium-high heat. Add onion, mushrooms, salt, garlic powder, and pepper; saut 2 minutes. Add broth and thyme; cook until liquid reduces, 3-4 minutes. Combine with green beans and stir in sour cream.
  5. Transfer mixture to glass pie pan. Place casserole and onion straws on separate oven racks. Bake until straws are deeply browned and crisp, 15-17 minutes. Top casserole with straws and garnish with thyme sprigs.

Transform your holidays or weeknight dinners with this irresistible low-carb green bean casserole! Fresh green beans mingle with earthy cremini mushrooms in a tangy sour cream sauce, crowned by homemade onion straws made with soy flour for that perfect keto-friendly crunch. At just 120 calories per serving, it's comfort food that fuels your joy.

Creative Variations to Wow Your Table

  • Melt cheddar into the sauce for gooey richness.
  • Swap straws for panko-Parmesan breadcrumbs mixed with butter.
  • Smoke with applewood and top with cheddar for bold flavor.
  • Go BBQ: Mix beans with sauce, bacon, and crispy onions.
  • Add gorgonzola sauce with pecan-breadcrumb topping.
  • Au gratin style: Caramelized onions, cheesy crumbs.
  • French onion-inspired: Caramelized onions in beef broth (no cream).
  • Spicy jalapeos fried or diced with cayenne.
  • Cobbler twist: Biscuit dough topping.

Pro Tips for Perfection

  • Blanch beans ahead for crisp-tender texture; drain thoroughly.
  • Prep straws earlybake to char for ultimate crunch.
  • Use cremini for depth or buttons for mildness; low-sodium broth balances salt.
  • Thyme shinestry rosemary for variety.
  • Reheat leftovers at 325F covered, then uncovered to crisp.
  • Pair with roasts, turkey, or ham for unforgettable meals.

Dive in and create magic in your kitchenthis crowd-pleasing classic, refreshed for today, will have everyone asking for seconds!

RecipeIsEasy Editorial Team

RecipeIsEasy Editorial Team

Recipe Developer & Food Writer

Our team of passionate home cooks and professional chefs test every recipe to ensure it's easy to follow, delicious, and reliable. We believe great food should be accessible to everyone.

Tested & reviewed by the RecipeIsEasy Kitchen Team

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The recipes and nutritional information provided on RecipeIsEasy.com are intended for general informational and educational purposes only. Nutritional values are estimates and may vary based on the specific brands or types of ingredients used.

If you have food allergies, dietary restrictions, or specific health conditions, please consult a qualified dietitian or healthcare professional before preparing or consuming any recipe from this site. Never disregard professional dietary advice because of content you have read here.

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