Ingredients You’ll Need
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1 lb ground beef
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1 medium onion, diced
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2 cloves garlic, minced
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2 (14.5 oz) cans green beans, drained (or 4 cups fresh green beans, blanched)
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1 (10.5 oz) can cream of mushroom soup
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½ cup sour cream
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1 cup shredded cheddar cheese
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1 teaspoon salt
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½ teaspoon black pepper
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1 teaspoon Worcestershire sauce
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1 cup crispy fried onions (for topping)
Step-by-Step Instructions
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Cook the beef – In a skillet over medium-high heat, brown ground beef with diced onion and garlic. Drain excess fat.
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Mix the filling – In a large bowl, combine cooked beef, green beans, cream of mushroom soup, sour cream, ½ cup cheese, salt, pepper, and Worcestershire sauce. Stir until everything is well coated.
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Assemble the casserole – Spread the mixture into a greased 9×13-inch baking dish. Sprinkle remaining cheese on top.
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Bake – Bake at 350°F (175°C) for 25–30 minutes, until bubbly and hot.
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Top & serve – Add crispy fried onions on top and bake for an additional 5 minutes. Serve warm.
Tips for the Best Hamburger Green Bean Casserole
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Use fresh green beans – Blanch fresh beans for the best texture and flavor, though canned beans work for convenience.
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Switch up the cheese – Try mozzarella, pepper jack, or Colby for a twist.
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Add more veggies – Mushrooms, bell peppers, or corn can add variety.
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Make it ahead – Assemble up to a day in advance and refrigerate. Just bake when ready to serve.