This creamy beef and mushroom bake is the kind of cozy, no-fuss dinner that hits the spot on a busy weeknight—savory ground beef, tender mushrooms, and a rich cream sauce baked until bubbly and golden.
Why You’ll Love This Recipe
- One-pan filling plus an easy bake finish
- Big comfort-food flavor without complicated steps
- Mushrooms add deep, savory flavor (even picky eaters often love it)
- Great for make-ahead and leftovers
Ingredients
- 1 1/2 lb ground beef (80/20 or 85/15)
- 1 tbsp olive oil (only if using very lean beef)
- 1 medium yellow onion, finely chopped
- 10 oz cremini mushrooms, sliced
- 3 cloves garlic, minced
- 2 tbsp all-purpose flour
- 1 3/4 cups beef broth
- 1 tbsp Worcestershire sauce
- 1 tsp Dijon mustard
- 1/2 tsp kosher salt, plus more to taste
- 1/2 tsp black pepper
- 1/2 tsp paprika (smoked or sweet)
- 3/4 cup sour cream (room temp helps it blend smoothly)
- 1 cup shredded mozzarella
- 1/2 cup shredded sharp cheddar
- 2/3 cup panko breadcrumbs
- 2 tbsp unsalted butter, melted
- 2 tbsp chopped parsley (optional, for serving)
How to Make Creamy Beef and Mushroom Bake
Preheat your oven to 400°F. Lightly grease a 9×13-inch baking dish (or a similar 3-quart casserole dish).
In a large skillet over medium-high heat, brown the ground beef until cooked through. If there’s excess grease, drain all but about 1 tablespoon (you want a little fat for flavor and the sauce).
Add the onion and mushrooms. Cook 6 to 8 minutes, stirring occasionally, until the mushrooms release their liquid and start to brown. Stir in the garlic and cook for 30 seconds.
Sprinkle the flour over the beef and vegetables. Stir for 1 minute to cook off the raw flour taste.
Slowly pour in the beef broth while stirring. Add Worcestershire, Dijon, salt, pepper, and paprika. Simmer 3 to 5 minutes, until the mixture thickens into a glossy, creamy-looking sauce.
Turn the heat to low. Stir in the sour cream until fully combined (keep it gentle so it doesn’t separate). Taste and adjust seasoning.
Spoon the beef and mushroom mixture into the prepared baking dish. Sprinkle the mozzarella and cheddar evenly over the top.
In a small bowl, mix panko with melted butter. Scatter over the cheese layer.
Bake 15 to 18 minutes, or until bubbling around the edges and the topping is golden. If you want more browning, broil for 1 to 2 minutes—watch closely.
Rest 5 minutes before serving so the sauce sets up slightly.
Serving Ideas
- Egg noodles or buttered pasta
- Mashed potatoes or roasted baby potatoes
- Steamed green beans, broccoli, or a crisp side salad
- Buttery dinner rolls to scoop up the sauce
Make-Ahead, Storage, and Reheating
- Make-ahead: Assemble through the cheese layer, cover, and refrigerate up to 24 hours. Add buttered panko right before baking. Add 5 to 10 minutes to bake time if starting cold.
- Refrigerate: Store leftovers in an airtight container for up to 4 days.
- Freeze: Freeze cooled portions up to 2 months. Thaw overnight in the fridge for best texture.
- Reheat: Microwave single servings, or reheat in a 350°F oven until hot (cover with foil if the top browns too quickly).
Recipe Tips and Easy Variations
- Extra creamy: Add 2 to 4 oz cream cheese with the sour cream.
- Add veggies: Stir in a cup of thawed frozen peas, chopped spinach, or diced bell pepper.
- Swap the protein: Ground turkey works, but use 1 to 2 tbsp oil and consider chicken broth for the sauce.
- Gluten-free: Use a 1:1 gluten-free flour blend and gluten-free panko (or crushed GF crackers).
Frequently Asked Questions
Can I use canned mushrooms? Fresh is best for texture and flavor, but drained canned mushrooms work in a pinch. Add them near the end so they don’t overcook.
How do I keep sour cream from curdling? Lower the heat before adding it, and avoid boiling once it’s in. Room-temperature sour cream blends in the smoothest.
Is this the same as stroganoff? It’s inspired by those flavors (beef, mushrooms, sour cream), but baked with a cheesy, crunchy topping for a casserole vibe.
