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French Onion Burgers (with roast potatoes and gravy)

Quick meal that's super delicious
Prep Time20 minutes
Cook Time45 minutes
Course: Dinner, Main, Main Course, Side Dish
Cuisine: American
Keyword: burgers with gravy, fancy hamburgers, french onion burgers, salisbury steak recipe
Servings: 4
Calories: 465kcal


  • 1 1/2 lb small yellow-flesh potatoes unpeeled, halved
  • 1 tbs unsalted butter melted, plus 3 tablespoons unsalted butter
  • ½ tsp salt
  • ½ tsp pepper
  • 1 1/2 lb lean ground beef
  • ½ cup panko bread crumbs
  • 2 tbs dry onion soup mix
  • 8 oz baby bella or chestnut mushrooms thinly sliced
  • 2 tbs flour
  • 1 cup beef stock
  • 1 tbs chopped fresh parsley optional


  • Preheat oven to 450F/230C. Lightly spray a non-stick rimmed baking sheet with non-stick spray.
  • Place potatoes in a medium bowl and drizzle the 1 tablespoon of melted butter over them; toss to coat, then add the salt and pepper and toss again.
  • Arrange potatoes, cut side down, on the prepared baking sheet. Bake for 30 minutes or until potatoes are done and nicely browned on the cut side.
  • While the potatoes are baking, mix the ground beef, panko crumbs and onion soup mix in a large bowl. Divide into 4 equal portions and shape into burgers about 1/2-inch/1.25 cm thick.
  • Melt 1 tablespoon of butter in a large skillet over medium heat. Add the patties to the pan and cook for about 4 minutes each side. Patties should have an internal temperature of 130F/55C. See NOTES
  • Remove patties from the pan and tent with foil to keep warm.
  • In the same pan, increase the heat to medium-high, add the mushrooms. Cook until well seared. Stir in the flour and cook for 1 minute. Slowly add the beef stock whisking constantly to avoid lumps. Remove from heat and add the final 2 tablespoons of butter; stir to combine.
  • Pour the sauce over the patties and serve with the potatoes.


If you want the patties more done, place them on a baking dish and put them in the oven with the potatoes for about 5 minutes while making the sauce.



Serving: 1serving | Calories: 465kcal | Carbohydrates: 44g | Protein: 44g | Fat: 12g | Saturated Fat: 6g | Cholesterol: 113mg | Sodium: 892mg | Potassium: 1711mg | Fiber: 5g | Sugar: 3g | Vitamin A: 172IU | Vitamin C: 35mg | Calcium: 70mg | Iron: 6mg