Creamy Ground Beef and Mushroom Casserole – Rich, Hearty & Easy Dinner

This creamy ground beef and mushroom casserole is rich, comforting, and packed with savory flavor. Tender ground beef, sautéed onions, and a creamy mushroom sauce come together in one of the best easy casserole recipes for a satisfying family dinner.

Every bite is creamy, savory, and incredibly filling—perfect for busy weeknights or cozy meals.

If you love easy ground beef recipes and creamy casseroles, this one is a must-try.

Recipe Details

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes
• Servings: 4–6
• Calories: ~480 per serving

Ingredients

• 1 lb ground beef
• 1 small onion, diced
• 3 cloves garlic, minced
• 2 cups mushrooms, chopped
• 2 tablespoons butter
• 2 tablespoons flour
• 1½ cups beef broth
• 1 cup heavy cream
• 1 teaspoon Worcestershire sauce
• ½ teaspoon black pepper
• ½ teaspoon salt (adjust to taste)
• 1 teaspoon Italian seasoning
• 1 cup shredded cheese (cheddar or mozzarella)
• Fresh parsley (optional, for garnish)

Instructions

1. Cook the Beef

In a large skillet over medium heat, cook ground beef until browned.
Drain excess fat if needed.

2. Add Onion & Garlic

Add diced onion and cook for 2–3 minutes until softened.
Stir in garlic and cook for 1 minute.

3. Cook the Mushrooms

Add chopped mushrooms and cook for 5–6 minutes until softened and lightly browned.

4. Make the Cream Sauce

Add butter to the pan and let it melt.
Stir in flour and cook for 1 minute.

Slowly add:

• beef broth
• heavy cream
• Worcestershire sauce
• salt, pepper, and Italian seasoning

Stir continuously and simmer for 5–7 minutes until thick and creamy.

5. Assemble

Transfer mixture to a baking dish.
Top with shredded cheese.

6. Bake

Bake at 375°F (190°C) for 15–20 minutes until bubbly and slightly golden on top.

7. Serve

Garnish with parsley and serve warm.

Pro Tips (Critical for Best Results)

• Brown beef well → deeper flavor
• Don’t skip flour step → thick, creamy sauce
• Cook mushrooms properly → removes excess moisture
• Let casserole rest 5 minutes → better texture

Best Variations

• Add cooked pasta or rice for a full meal
• Use ground turkey for a lighter version
• Add spinach for extra nutrition

Serving Suggestions

• Garlic bread
• Side salad
• Steamed vegetables
• Mashed potatoes

Frequently Asked Questions

Can I make this ahead?
Yes, assemble and refrigerate, then bake when ready.

Can I freeze it?
Yes, freeze before baking for best results.

How do I store leftovers?
Store in an airtight container in the fridge for up to 3 days.