Can I use frozen green beans?

Yes! Just thaw them first and pat them dry if they’re watery. Frozen works great for this Quick Ground Beef Casserole with Green Beans —it’s kind of the whole point of making life easier.

Can I make this ahead of time?

You can cook the beef mixture and sauce ahead, then reheat gently and add cheese right before serving. If you broil the cheese at the end, it tastes freshly made.

How do I store leftovers?

Store in an airtight container in the fridge for 3–4 days . Reheat in a skillet on low with a splash of broth, or microwave in short bursts.

Can I swap the ground beef?

Absolutely. Ground turkey or chicken works, but you may want a little extra seasoning since they’re leaner. The creamy sauce helps keep it rich.

What can I serve with Hamburger Green Bean Casserole?

It’s hearty on its own, but a simple salad, garlic bread, or even rice on the side works if you’re feeding a crowd (or dealing with teenagers).

6 Delicious Ground Beef Casserole with Green Beans

Description

This Ground Beef Casserole with Green Beans is a cozy, one-pan dinner made with seasoned ground beef, tender green beans, mushrooms, and a creamy cheese sauce. Finished with melted cheese (and optional crispy onions), it’s quick, comforting, and perfect for busy weeknights.

Ingredients

Scale

1 lb ground beef (80/20 blend)
2 cups green beans, trimmed (fresh or thawed frozen)
1 cup diced onion (yellow or white)
1 cup sliced mushrooms (button or baby bella)
3 tsp minced garlic
¼ cup low-sodium beef or chicken broth
⅓ cup full-fat sour cream
2 Tbsp cream cheese, room temperature
½ tsp sea salt (or to taste)
½ tsp freshly ground black pepper
½ tsp Worcestershire sauce
⅛ tsp dried thyme
2 cups shredded Colby Jack cheese (use 1 cup for lighter version)
Optional: crispy fried onions for topping

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Instructions

Heat a large skillet over medium heat. Add ground beef and cook for about 5 minutes, breaking it apart, until no pink remains. Drain excess fat, reserving 1 tablespoon in the pan. Set beef aside.
In the same skillet, add diced onion and cook for 3–4 minutes until softened. Add mushrooms and sauté for 2 minutes until lightly browned.
Stir in green beans, garlic, and broth. Cook for 2–3 minutes until beans are bright green and crisp-tender.
Reduce heat to medium-low. Add cream cheese and stir until melted and smooth. Mix in sour cream to create a creamy sauce.
Return cooked beef to the skillet. Add salt, pepper, Worcestershire sauce, and thyme. Stir until everything is well combined.
Sprinkle shredded cheese evenly over the top.
Cover and cook on low for 3–4 minutes until cheese is melted, or broil for 1–2 minutes until bubbly and lightly golden.
Serve hot.

Notes

Fresh or frozen green beans both work well—just thaw frozen beans first.

For extra crunch, sprinkle crispy fried onions on top before serving.

This dish reheats beautifully and tastes even better the next day.

You can swap Colby Jack for cheddar or mozzarella if needed.

Prep Time: 10 minutes
Cook Time: 20 minutes
Category: Dinner
Method: Skillet
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 520 kcal
Sugar: 5 g
Sodium: 780 mg
Fat: 38 g
Saturated Fat: 17 g
Unsaturated Fat: 18 g
Trans Fat: 1 g
Carbohydrates: 12 g
Fiber: 3 g
Protein: 32 g
Cholesterol: 115 mg