Green Bean Casserole with Potatoes: A Comforting Classic

Few dishes feel as comforting and nostalgic as a hearty casserole fresh from the oven. This Green Bean Casserole with Potatoes combines the creamy richness of a classic green bean bake with the heartiness of tender potatoes. It’s cozy, flavorful, and the perfect side dish (or even main dish!) for family dinners, potlucks, or holiday gatherings. With simple pantry ingredients and a fuss-free method, this recipe is as approachable as it is delicious.

Green bean casserole with potatoes topped with crispy fried onions.

Recipe Info

FieldInfo
CategoryDinner / Side Dish
Prep Time15 minutes
Cook Time40 minutes
Servings6–8 servings
Calories~260 kcal per serving

Ingredients You’ll Need

  • 4 medium potatoes, peeled and diced
  • 2 cups fresh or frozen green beans (trimmed)
  • 1 medium onion, finely chopped
  • 2 garlic cloves, minced
  • 1 (10.5 oz) can cream of mushroom soup
  • ½ cup milk
  • 1 cup shredded cheddar cheese (optional)
  • 1 tablespoon butter or olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 cup crispy fried onions (for topping)

Step-By-Step Instructions

  1. Preheat and prep. Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish.
  2. Cook the potatoes. Place diced potatoes in a pot of salted water. Bring to a boil and cook for 8–10 minutes, just until fork-tender. Drain well.
  3. Sauté aromatics. In a skillet, melt butter or heat olive oil. Add onion and garlic, cooking until softened and fragrant.
  4. Mix the casserole base. In a large bowl, stir together cream of mushroom soup, milk, salt, pepper, and cheese (if using). Add cooked potatoes, green beans, and sautéed onions. Mix gently to coat.
  5. Assemble. Spread mixture evenly into the baking dish.
  6. Bake. Cover with foil and bake for 25 minutes. Remove foil, sprinkle with crispy fried onions, and bake for another 10–15 minutes until golden and bubbly.
  7. Serve. Let rest for 5 minutes before serving warm.

Tip: For extra creaminess, stir in a few spoonfuls of sour cream before baking.

Helpful Notes & Tips

  • Make-ahead: Assemble the casserole up to 24 hours in advance, cover, and refrigerate. Add the crispy onions just before baking.
  • Storage: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven for the best texture.
  • Potato shortcut: Use canned diced potatoes or pre-cooked frozen hash browns if you’re short on time.

Recipe Variations

  1. Cheesy Upgrade: Add extra cheddar or mozzarella cheese throughout for a gooey, cheesy version.
  2. Meaty Twist: Stir in 1 cup of cooked, crumbled beef for a heartier dish.
  3. Lighter Version: Use low-fat cream of mushroom soup and swap half the potatoes for cauliflower florets.

Serving Suggestions

  • Perfect alongside roast chicken, turkey, or beef for a holiday spread.
  • Pair with a crisp green salad to balance the creamy richness.
  • Serve as a standalone vegetarian dinner with a slice of crusty bread.

Conclusion

This Green Bean Casserole with Potatoes is a cozy, comforting dish that brings both nostalgia and heartiness to the table. Whether you’re serving it for a Sunday supper, a holiday feast, or a casual weeknight meal, this creamy, crispy-topped casserole is sure to win hearts. Gather your loved ones, scoop generous portions, and enjoy every warm, flavorful bite.