Keto Irish Beef and Mushroom Casserole

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Killarney National Park

📍 Where this dish comes from: County Kerry · Killarney National Park
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Keto Irish Beef and Mushroom Casserole, plated and ready to serve

This Keto Irish Beef and Mushroom Casserole is a hearty, comforting dish that combines tender beef with earthy mushrooms in a rich, creamy sauce. It’s a perfect low-carb, high-fat meal that’s satisfying and easy to prepare. The combination of beef and mushrooms, seasoned with herbs, creates a dish full of flavor while keeping carbs to a minimum.

What You’ll Need

Ingredients for Keto Irish Beef and Mushroom Casserole

Keto Irish Beef and Mushroom Casserole

This Keto Irish Beef and Mushroom Casserole is a hearty, comforting dish that combines tender beef with earthy mushrooms in a rich, creamy sauce.
Print Recipe
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Course: Main Course
Cuisine: Irish
Servings: 4 servings
Calories: 480kcal

Ingredients

  • 1.5 lbs ground beef (or beef stew meat, cut into bite-sized pieces)
  • 2 cups mushrooms sliced
  • 1 small onion chopped
  • 3 cloves garlic minced
  • 1 cup heavy cream
  • 1/2 cup beef broth
  • 1/4 cup grated Parmesan cheese
  • 1 tbsp butter or olive oil
  • 1 tsp fresh thyme or rosemary chopped
  • 1 tsp smoked paprika
  • Salt and pepper to taste
  • 1/2 cup shredded cheddar cheese (optional, for topping)
  • Fresh parsley, chopped (for garnish)

Instructions

  • Preheat the oven: Preheat your oven to 375°F (190°C).
  • Brown the beef: In a large skillet, heat the butter or olive oil over medium heat. Add the ground beef (or beef stew meat) and cook until browned, about 5-7 minutes. Season with salt, pepper, and smoked paprika. Remove the beef from the skillet and set aside.
  • Sauté the onions and mushrooms: In the same skillet, add the chopped onions, garlic, and sliced mushrooms. Cook for 4-5 minutes until the vegetables are softened and the mushrooms have released their moisture.
  • Make the creamy sauce: Stir in the beef broth, heavy cream, and fresh thyme or rosemary. Let the mixture simmer for 5-7 minutes, allowing the sauce to thicken slightly. Stir in the grated Parmesan cheese and adjust seasoning with salt and pepper.
  • Assemble the casserole: In a baking dish, combine the cooked beef with the creamy mushroom sauce. If desired, top with shredded cheddar cheese for an extra cheesy finish.
  • Bake: Bake in the preheated oven for 15-20 minutes, or until the casserole is bubbly and the cheese is melted and golden.
  • Serve: Garnish with freshly chopped parsley and serve hot. This casserole pairs wonderfully with cauliflower mash or a simple green salad for a complete keto meal.

Nutrition

Serving: 1serving | Calories: 480kcal | Protein: 28g | Fat: 38g
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Cooking Keto Irish Beef and Mushroom Casserole in the kitchen

Health Benefits

  • A cream and Parmesan sauce builds richness without any flour-based thickener.
  • Mushrooms add umami and volume with next to no carbs, making this a satisfying, high-fat casserole.

Pairs Well With

  • Roasted Brussels Sprouts and Bacon Salad
  • Keto Colcannon Salad
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