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A top-down shot of a bubbling, cheesy Hamburger Green Bean Casserole in a baking dish, topped with golden-brown crispy fried onions and melted cheddar cheese.

Hamburger Green Bean Casserole

This hearty Hamburger Green Bean Casserole is a comforting, easy-to-make family favorite loaded with ground beef, green beans, and a creamy mushroom sauce topped with crispy fried onions.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Casserole, Main Course
Cuisine: American
Calories: 480
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 1 lb ground beef
  • 1/2 cup onion chopped
  • 2 cans cut green beans drained (14.5 oz each)
  • 1 can cream of mushroom soup (10.5 oz / 298 g)
  • 1/2 cup milk
  • 1 cup shredded cheddar cheese
  • 1 cup crispy fried onions divided
  • salt and pepper to taste

Equipment

  • Skillet
  • Mixing Bowl
  • Baking Dish
  • Spatula

Method
 

  1. Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish.
  2. In a skillet over medium heat, cook ground beef and chopped onion until beef is browned and onion is soft. Drain excess grease.
  3. In a mixing bowl, combine cream of mushroom soup, milk, salt, and pepper. Stir in cooked beef mixture, green beans, and half of the fried onions.
  4. Transfer mixture to the prepared baking dish. Sprinkle with shredded cheese.
  5. Bake uncovered for 25 minutes, then top with remaining fried onions and bake an additional 5 minutes until golden and bubbly.
  6. Let cool for a few minutes before serving. Enjoy warm!

Notes

For a richer flavor, try adding a dash of Worcestershire sauce or a sprinkle of garlic powder to the beef mixture. This casserole reheats beautifully for leftovers!