Go Back
Featured image of a delicious Hamburger Green Bean Casserole ready to be served.

Hamburger Green Bean Casserole Easy

This Hamburger Green Bean Casserole elevates the classic side dish into a complete and satisfying meal. Savory ground beef is combined with creamy green beans and topped with crispy fried onions for a comforting and easy weeknight dinner.
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 6
Course: Main Course
Cuisine: American
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

  • 1 pound ground beef
  • 1 medium onion, chopped
  • 2 cloves garlic, minced
  • 1 cup milk, divided
  • 1 teaspoon Worcestershire sauce
  • Salt to taste
  • Pepper to taste
  • 1/4 teaspoon garlic powder
  • 1 1/3 cups french fried onions, divided

Equipment

  • 9x13 inch baking dish
  • Large Skillet
  • Large bowl
  • Measuring cups
  • Measuring spoons
  • Can opener
  • Oven

Method
 

  1. Preheat oven to 350°F (175°C). Grease a 9x13 inch baking dish.
  2. In a large skillet over medium-high heat, brown the ground beef. Drain off any excess grease.
  3. Add the chopped onion and minced garlic to the skillet and cook until softened, about 5 minutes.
  4. Stir in 1 can of cream of mushroom soup, 1/2 cup milk, and Worcestershire sauce. Season with salt and pepper to taste. Simmer for 5 minutes, stirring occasionally, until heated through.
  5. In a large bowl, combine the drained green beans, remaining can of cream of mushroom soup, remaining 1/2 cup milk, and garlic powder. Mix well.
  6. Pour the green bean mixture into the prepared baking dish.
  7. Spread the hamburger mixture evenly over the green beans.
  8. Sprinkle 2/3 cup of the french fried onions over the top of the casserole.
  9. Bake in the preheated oven for 20 minutes.
  10. Remove the casserole from the oven and sprinkle the remaining 2/3 cup of french fried onions over the top.
  11. Return the casserole to the oven and bake for an additional 5-10 minutes, or until the onions are golden brown and crispy.
  12. Let the casserole stand for 5-10 minutes before serving.

Notes

If the casserole is too watery, ensure green beans are well-drained. Adding a tablespoon of cornstarch to the green bean mixture can help thicken it. If French fried onions are browning too quickly, tent the casserole with aluminum foil for the last 5-10 minutes of baking. Add shredded cheddar cheese, mozzarella, or Monterey Jack on top of the hamburger mixture before adding the french fried onions for extra flavor. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat in a preheated oven at 350°F (175°C) until heated through, or microwave in individual portions.