If you’re searching for a hearty, flavorful casserole that the whole family will love, look no further than this Hamburger Green Bean Casserole with Mushrooms. It’s a one-pan, low-carb, and keto-friendly dinner that cooks in under 30 minutes, making it perfect for busy weeknights. Using all-natural ingredients, this casserole packs big flavor without relying on cream of mushroom soup or processed additives.
Whether you’re a fan of classic casseroles or want to sneak in more vegetables into your family meals, this dish is sure to become a regular on your dinner rotation. The combination of tender green beans, juicy ground beef, and savory mushrooms topped with melted cheese is simply irresistible.
Why You’ll Love This Green Bean Casserole
This casserole isn’t just delicious—it’s also practical and healthy:
- Quick and Easy: Ready in less than 30 minutes, perfect for weeknight dinners.
- Low Carb & Keto-Friendly: Uses fresh vegetables and full-fat dairy, keeping carbs low while staying satisfying.
- Gluten-Free: No hidden gluten or processed sauces.
- High Protein: Ground beef provides plenty of protein to keep you full and energized.
- Family Approved: Even picky eaters love it!
Readers rave about this dish for its rich, savory flavor, often comparing it to beef stroganoff. And because it’s a one-pan meal, cleanup is a breeze.
Ingredients You’ll Need
Here’s what you’ll need for this hamburger green bean casserole with mushrooms:
- 1 lb ground beef – An 80/20 blend works best, but leaner beef or ground turkey also works.
- 2 cups green beans – Fresh or frozen, trimmed and prepped.
- 1 cup diced onion – Adds sweetness and depth.
- 1 cup sliced mushrooms – Any variety you like.
- 3 tsp minced garlic – For that extra punch of flavor.
- ¼ cup beef or chicken broth – Helps soften the vegetables.
- ⅓ cup sour cream – Full-fat for best results.
- 2 tbsp cream cheese – Adds creaminess to the sauce.
- ½ tsp sea salt
- ½ tsp ground black pepper
- ½ tsp Worcestershire sauce – Or use coconut aminos for a gluten-free option.
- 2 cups shredded Colby Jack cheese – Use less if you prefer a lighter casserole.
- ⅛ tsp dried thyme – Optional, for a subtle earthy note.
How to Make Hamburger Green Bean Casserole
Follow these simple steps for a creamy, cheesy casserole that your family will devour.
Step 1: Cook the Ground Beef
In a large skillet over medium heat, add 1 tablespoon of olive oil. Brown the ground beef until fully cooked, about 5 minutes. Drain the excess grease, but reserve 1 tablespoon to sauté the vegetables. Set the beef aside.
Step 2: Sauté the Vegetables
In the same skillet, add the onions and cook until they just begin to soften, about 3-4 minutes. Add mushrooms and cook another 2 minutes. Then stir in the green beans, garlic, and broth. Cook for 2-3 more minutes until the vegetables are tender but still vibrant.
Step 3: Make It Creamy
Turn the heat down to medium-low and add the cream cheese, stirring until melted. Then mix in the sour cream until the sauce is smooth and creamy.
Step 4: Combine Everything
Return the cooked ground beef to the pan. Add salt, pepper, thyme, and Worcestershire sauce. Stir gently to combine everything evenly.
Step 5: Add the Cheese
Sprinkle shredded Colby Jack cheese over the top. You can broil the skillet in the oven for 2 minutes until the cheese is melted and slightly golden. If you prefer stovetop cooking, cover with a lid and melt the cheese on low heat for 3-4 minutes—cheese won’t be crispy but will be perfectly gooey.
Tips for the Best Hamburger Casserole
- One-Pan Meal: Using a cast-iron skillet makes this an easy one-pan meal that can go from stovetop to oven.
- Cheese Adjustments: If you prefer a lighter casserole, reduce the cheese by half.
- Extra Sauce: Add a bit more broth if you like a saucier consistency.
- Vegetable Variations: Broccoli or zucchini can be swapped in for green beans for variety.
- Keto-Friendly: Stick to full-fat dairy and low-carb veggies for keto compliance.
Hamburger Green Bean Casserole with Mushrooms – A Quick and Healthy Family Favorite
Ingredients
1 lb ground beef (80/20 blend recommended)
2 cups green beans, trimmed and prepped (fresh or frozen)
1 cup diced onion
1 cup sliced mushrooms
3 tsp minced garlic
¼ cup beef or chicken broth
⅓ cup sour cream (full-fat preferred)
2 tbsp cream cheese
½ tsp sea salt
½ tsp ground black pepper
½ tsp Worcestershire sauce (or coconut aminos for gluten-free)
2 cups shredded Colby Jack cheese (reduce to 1 cup for lighter option)
⅛ tsp dried thyme (optional)
Instructions
- Cook the ground beef: In a large skillet over medium heat, add 1 tbsp olive oil. Brown the beef for about 5 minutes. Drain excess grease but keep 1 tbsp for vegetables. Set beef aside.
- Sauté vegetables: In the same skillet, cook onions until softened (3-4 minutes). Add mushrooms and cook 2 more minutes. Stir in green beans, garlic, and broth; cook 2-3 minutes until vegetables are tender.
- Make creamy: Reduce heat to medium-low, add cream cheese, and stir until melted. Mix in sour cream until smooth.
- Combine: Return the ground beef to the skillet. Add salt, pepper, thyme, and Worcestershire sauce. Stir gently to combine.
- Add cheese: Sprinkle shredded Colby Jack over the top. Broil in the oven for 2 minutes until melted and golden, or cover and melt on stovetop over low heat for 3-4 minutes.
- Serve: Scoop directly from the skillet or transfer to a serving dish. Enjoy hot.
Notes
- One-pan convenience: Cast-iron skillets work best for stovetop-to-oven cooking. If you don’t have one, use an oven-safe casserole dish.
- Cheese: Reduce for lighter meals or leave as is for extra indulgence.
- Extra sauce: Add more broth if you like your casserole saucier.
- Vegetable swaps: Broccoli, zucchini, or bell peppers work well as alternatives.
- Keto-friendly: Stick to low-carb veggies and full-fat dairy for keto compliance.
