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Hamburger Green Bean Casserole with Mushrooms

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Hamburger Green Bean Casserole is a quick one-skillet meal with savory ground beef, crisp-tender green beans, earthy mushrooms, and a creamy cheesy sauce. Naturally gluten-free, low-carb, and keto-friendly.

  • Total Time: 25 minutes
  • Yield: 4 servings 1x

Ingredients

Scale
  • 1 lb ground beef (80/20)
  • 2 cups green beans, trimmed (fresh or thawed frozen)
  • 1 cup diced onion
  • 1 cup sliced mushrooms (button or baby bella)
  • 3 tsp minced garlic
  • 1/4 cup low-sodium beef or chicken broth
  • 1/3 cup full-fat sour cream
  • 2 Tbsp cream cheese, room temperature
  • 1/2 tsp sea salt
  • 1/2 tsp freshly ground black pepper
  • 1/2 tsp Worcestershire sauce
  • 1/8 tsp dried thyme
  • 2 cups shredded Colby Jack cheese (use 1 cup for lighter version)

Instructions

  1. Heat a skillet over medium heat. Cook ground beef ~5 minutes, breaking apart until no pink remains. Drain, reserving 1 Tbsp fat; set beef aside.
  2. In reserved fat, cook diced onion 3–4 min until translucent. Add mushrooms and sauté 2 min until slightly caramelized.
  3. Stir in green beans, garlic, and broth; cook 2–3 min until beans are bright green and crisp-tender.
  4. Reduce heat to medium-low. Melt cream cheese, stirring until smooth, then blend in sour cream to form creamy sauce.
  5. Return cooked beef to skillet. Add salt, pepper, Worcestershire sauce, and thyme. Stir gently to coat everything evenly.
  6. Sprinkle Colby Jack cheese over the top. Option A: Broil 1–2 min until cheese is golden and bubbly. Option B: Cover and cook on low 3–4 min until cheese melts. Serve hot.

Notes

  • Reserve 1 Tbsp beef fat to enhance flavor.
  • Keep heat medium-low when adding sour cream/cream cheese to prevent curdling.
  • Prepare through Step 5 ahead of time; refrigerate and finish with cheese before serving.
  • Refrigerate leftovers up to 4 days; reheat in microwave or 350°F oven.
  • Swap Colby Jack for cheddar or Monterey Jack; Worcestershire can be replaced with tamari or coconut aminos.
  • Serve solo, with a salad, or over cauliflower rice for a low-carb option.
  • Author: lina
  • Prep Time: 10 minutes
  • Cook Time: 15 minutes
  • Category: Main
  • Method: Skillet
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 450
  • Sugar: 3 g
  • Sodium: 700
  • Fat: 28 g
  • Saturated Fat: 12 g
  • Carbohydrates: 12 g
  • Fiber: 4 g
  • Protein: 35 g
  • Cholesterol: 85