Kidney-Friendly Green Bean with Crispy Fried Onions

By Adam Fisher
Published 7/21/2026
Dietitian Reviewed: Erin McNamara, RDN, LDN, CLT
Approved for These Diets:
Kidney-Friendly Green Bean with Crispy Fried Onions
Photo Credit: Adam Fisher, Baldwin Publishing

Looking for a classic holiday side dish that fits your renal diet? This Kidney-Friendly Green Bean Casserole with Crispy Fried Onions is a healthy copycat version of French's Green Bean Casserole that delivers all the creamy, crunchy comfort you love with a fraction of the sodium.

By swapping in no-salt-added green beans, unsalted cream of mushroom soup, and skim milk, we’ve created an easy, 5-minute prep recipe that keeps potassium and phosphorus in check. It's the ultimate low-sodium green bean casserole for your festive table.

For more of our renal diet favorites, check out all of our delicious kidney-friendly recipes!

Total Time
40 minutes
Servings
8
Calories
91

What Makes This Kidney-Friendly Green Bean Casserole Healthy

This casserole slashes sodium and controls potassium by utilizing no-salt-added canned goods and unsalted soup without sacrificing that classic creamy texture.

Key Health Highlights

  • Contains just 84mg of sodium per serving, making it a great low-sodium option.
  • Provides a kidney-safe 133mg of potassium per half-cup serving.
  • Keeps phosphorus levels low at just 32mg per serving.
  • Uses skim milk to reduce saturated fat compared to traditional recipes.

FAQs About Kidney-Friendly Green Bean Casserole

Yes, green beans are generally considered a kidney-friendly vegetable because they are naturally lower in potassium and phosphorus compared to many other vegetables.

Yes, green beans are a great low-potassium choice. Just be sure to monitor your portion sizes and stick to the recommended serving sizes in your meal plan.

Traditional recipes vary, but this specific kidney-friendly recipe contains exactly 133mg of potassium per half-cup serving.

Yes! If using fresh or frozen green beans, we recommend blanching or parboiling them first so they fully cook and soften in the oven alongside the creamy mushroom sauce.

Low Sodium Casserole Side Dishes

If you love the comforting flavors of this green bean bake, explore our other low sodium casserole recipes for more kidney-friendly side dishes.

Healthy Holiday Mains

Complete your festive feast by pairing this classic green bean side with our favorite healthy holiday dinner recipes.

Kidney-Friendly Green Bean Casserole vs. Traditional French's Green Bean Casserole

When comparing our kidney-friendly copycat version to the traditional French's Green Bean Casserole, the nutritional savings are massive. By making a few simple ingredient swaps, you can enjoy this holiday classic without derailing your health goals:

  • 87% reduction in sodium: Our recipe contains just 84mg of sodium per serving, compared to the 652mg found in the traditional recipe.
  • 37% reduction in calories: We've lightened up the dish to 91 calories per serving, down from the traditional 145 calories.

Ingredient Spotlights: Canned No-Salt-Added Green Beans & Unsalted Soup

To achieve the classic flavor of this casserole safely on a renal diet, we rely on two key staples. First, no-salt-added canned green beans ensure you get the tender texture required for baking without the massive sodium spike of standard canned vegetables. Second, we use Campbell's Condensed Unsalted Cream of Mushroom Soup as our creamy base, which perfectly mimics the traditional recipe while giving you complete control over the sodium content.

Healthy Variations

  • Cheesy Variation: Stir in a small handful of shredded low-sodium Swiss or mozzarella cheese to the bean mixture for extra richness.
  • Mushroom Boost: Sauté some fresh, chopped white button mushrooms in a touch of olive oil and stir them in for extra texture.
Photo Credit: Adam Fisher, Baldwin Publishing

Ingredients

Recipe yields 8 servings

Directions

  1. Step 1

    Preheat oven to 350°F. Grease a 9x13-inch baking dish with nonstick cooking spray; set aside.

  2. Step 2

    In large mixing bowl, combine the cream of mushroom soup, skim milk, black pepper, garlic powder, and onion powder. Stir in the green beans, chopped onion and ¼ cup crispy fried onions.

  3. Step 3

    Transfer green bean mixture to the prepared baking dish. Bake for 30 minutes. Remove from oven and stir.

  4. Step 4

    Top with the remaining ½ cup crispy fried onions. Return to the oven and bake for 5 minutes, until crispy fried onions are golden brown. Remove from the oven and let sit for 5 minutes. Serve warm and enjoy!

Nutrition Facts

Serving Size:
1/2 cup

91
Calories
5
g
Fat
10
mg
Cholesterol
84
mg
Sodium
10
g
Carbs
2
g
Sat. Fat
1
g
Fiber
2
g
Protein
2
g
Sugars
133
mg
Potassium
32
mg
Phosphorus

Alternative Cooking Methods

If you need to save oven space during the holidays, you can assemble this casserole in a slow cooker. Mix the soup, milk, spices, and green beans in your crockpot and cook on low for 2–3 hours. Stir in half the crispy onions right before serving, and top with the rest!

Serving & Storage Tips

Let the casserole rest for 5 minutes after baking; this helps the creamy sauce thicken up slightly before serving. Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat and keep the onions crispy, warm portions in the oven at 350°F for about 10-15 minutes instead of using the microwave.

What to Serve With This Kidney-Friendly Green Bean Casserole

This casserole is a must-have alongside traditional holiday mains like roasted turkey, baked chicken breast, or a lean meatloaf. Pair it with low-sodium mashed potatoes and a simple, fresh salad to complete your kidney-friendly feast.

Ingredient Substitutions

You can easily swap the canned green beans for frozen or fresh green beans. If using fresh or frozen, be sure to blanch or parboil them first so they become fully tender when baking in the casserole.

You can substitute almond milk, oat milk, or 1% milk depending on your dietary preferences.

If you want a little more savory depth without adding salt, try adding a pinch of smoked paprika or dried thyme.

We divide the onions to build flavor inside the casserole and crunch on top, but you can use a bit of crushed low-sodium cereal or panko if you run short on fried onions.

More Low Sodium Side Dishes for the Holidays

If you enjoyed our kidney-friendly green bean casserole, be sure to complete your festive meal with these other delicious, low-sodium side dishes perfect for the holidays.