French Onion Beef & Mushroom Skillet
A cozy skillet dinner that brings restaurant-level flavor to your home kitchen—tender beef, golden caramelized onions, and earthy mushrooms in a rich, savory sauce.
Why You’ll Love This Recipe
If you’re craving comfort food without turning on the oven, this French Onion Beef & Mushroom Skillet is your new weeknight hero. It’s savory, hearty, and loaded with flavor thanks to deeply caramelized onions, seared sirloin, and a touch of balsamic vinegar. Best of all, it comes together in just one skillet—easy cleanup included!
🛒 Ingredients
For 4 servings:
- 1 lb beef sirloin, thinly sliced
- 2 tbsp olive oil
- 2 large onions, thinly sliced
- 2 cups mushrooms, sliced (cremini or button)
- 3 cloves garlic, minced
- 1 tsp fresh thyme leaves (or ½ tsp dried thyme)
- 1 tbsp balsamic vinegar
- 1 cup beef broth
- Salt and black pepper, to taste
- Fresh parsley, chopped (for garnish)
👨🍳 Directions
1. Caramelize the Onions
Heat 1 tbsp olive oil in a large skillet over medium heat.
Add the sliced onions and cook, stirring occasionally, for 15–20 minutes, or until they’re soft, golden, and sweet.
Remove onions from the skillet and set aside.
2. Sear the Beef
In the same skillet, add the remaining 1 tbsp olive oil.
Turn the heat up to medium-high, add the beef sirloin, season with salt and pepper, and cook for 3–4 minutes until browned.
Transfer the beef to the plate with the onions.
3. Sauté Mushrooms & Garlic
Add the mushrooms to the skillet and cook for 5 minutes, stirring occasionally, until golden and tender.
Stir in the garlic and thyme, and cook for another minute until fragrant.
4. Bring It All Together
Return the beef and caramelized onions to the skillet.
Pour in the balsamic vinegar and beef broth, stirring to combine.
Let the mixture simmer for 5–7 minutes, allowing the flavors to come together and the sauce to slightly reduce.
5. Garnish & Serve
Taste and adjust the seasoning if needed.
Sprinkle with fresh parsley and serve warm.
🍽 How to Serve
This dish pairs beautifully with:
- Creamy mashed potatoes
- Buttery egg noodles
- Crusty bread to soak up the sauce
- Or a simple green salad for a lighter meal
⏱ Time & Nutrition
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Servings: 4
- Calories: ~350 per serving
Pro Tips & Variations
- Upgrade your protein: Try using sliced ribeye or leftover steak.
- Add depth: A splash of red wine adds extra richness.
- Make it creamy: Stir in a spoonful of sour cream or heavy cream at the end for a velvety finish.
- Meal prep: This skillet reheats beautifully—store leftovers in an airtight container for up to 3 days.
This French Onion Beef & Mushroom Skillet brings bold, comforting flavors to your dinner table in under an hour. One pan, endless satisfaction—perfect for when you want something that tastes like it’s been slow-cooked all day.
Bon appétit!
