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Hamburger Green Bean Casserole served in a baking dish, garnished with herbs.

Hamburger Green Bean Casserole

A cozy, creamy, and cheesy casserole made with ground beef, green beans, and topped with crispy fried onions. Perfect for weeknight dinners and meal prep!
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course Dinner, Main Course
Cuisine American
Servings 6 servings
Calories 400 kcal

Ingredients
  

Main Ingredients

  • 1 lb ground beef 85% lean preferred for flavor without a lot of grease.
  • 2 cups green beans (fresh or frozen) If using frozen, no need to thaw.
  • 1 cup mushrooms (sliced) Add deep, savory flavor.
  • 1 can cream of mushroom soup Base for creamy sauce.
  • 1/2 cup milk Use whole milk for richness, or alternatives for lighter versions.
  • 1 cup shredded cheddar cheese Sharp cheddar is recommended.
  • 1 cup crispy fried onions Topping for crunch and nostalgia.
  • to taste Salt and pepper Season to preference.

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C).
  • In a skillet, brown the ground beef over medium heat, then drain any excess fat.
  • Add the green beans and mushrooms to the skillet, cooking for another 5 minutes until slightly softened.
  • In a bowl, mix the cream of mushroom soup and milk. Stir the soup mixture into the meat and vegetable mixture.
  • Transfer everything to a greased casserole dish.
  • Top with shredded cheddar cheese and crispy fried onions.
  • Bake in the preheated oven for 25-30 minutes, or until heated through and the cheese is melted.
  • Serve hot and enjoy.

Notes

You can assemble the casserole ahead of time and keep it in the fridge. Add crispy onions just before baking. Leftovers can be reheated in the microwave or oven. This also freezes well; double the recipe for batch cooking.
Keyword Casserole, Comfort Food, Easy Dinner, Green Beans, Ground Beef