French Onion Soup Meatloaf

Ingredients

• 1 kg (2 lb)minced beef
• 1 packetFrench onion soup mix
• 110 g (1 cup)breadcrumbs, regular or panko
• 2 largeeggs, lightly beaten
• 2 cloves, minced (or 1 teaspoon)garlic (or garlic powder)
• 120 ml (½ cup)milk, whole or 2%
• 1 tablespoonWorcestershire sauce
• 15 g (¼ cup), choppedparsley
• ½ teaspoonground black pepper
• ¼ teaspoondried thyme
• 120 g (½ cup)ketchup
• 2 tablespoonsbrown sugar
• 1 tablespoonDijon mustard or yellow mustard
• 1 teaspoonapple cider vinegar or Worcestershire sauce
• 55 g (½ cup), gratedSwiss cheese or Gruyère

Instructions

1. 1

   Preheat the oven

   Lightly grease a loaf tin and preheat the oven to 180°C (350°F).

2. 2

   Mix the meat

   In a large bowl, gently combine the beef, soup mix, breadcrumbs, beaten eggs, milk, Worcestershire sauce, garlic, parsley, black pepper and thyme using your hands or a spoon. The mixture should feel moist and sticky; if it seems dry, add a splash of milk, or if it is too wet, mix in a tablespoon of breadcrumbs. Avoid overmixing.

3. 3

   Let it rest

   Leave the mixture for 5–10 minutes so the soup mix can rehydrate and the flavours can come together.

4. 4

   Shape the loaf

   Transfer the mixture to the loaf tin and make a shallow groove along the length of the top for the cheese. If you are not using a loaf tin, line a baking sheet with parchment and shape the mixture into a loaf about 20 cm (8 inches) long, 13 cm (5 inches) high and 10 cm (4 inches) wide.

5. 5

   Make the glaze

   Whisk the ketchup, brown sugar, mustard and vinegar together in a small bowl. Spread half over the meatloaf and reserve the rest for basting later or serving at the table.

6. 6

   Bake the meatloaf

   Bake in the preheated oven for about 45 minutes. Remove it and brush with the remaining glaze, then bake for another 15–30 minutes. Check the centre with a thermometer: beef should reach 71°C (160°F), while poultry should reach 74°C (165°F).

7. 7

   Add the cheese

   During the final 5 minutes of baking, put the grated cheese in the groove on top. Briefly place under the grill until bubbling, watching closely so it does not burn.

8. 8

   Rest and serve

   Take the meatloaf out of the oven and leave it to rest for 10–15 minutes before slicing; this helps it stay juicy and makes cleaner slices. Cut into pieces about 2 cm (¾ inch) thick and serve with French onion gravy, mashed potatoes and roasted vegetables.

What is French onion soup meatloaf?

Meatloaf is a familiar American comfort-food dish made by shaping seasoned minced meat into a loaf and baking it. This version borrows the savoury onion seasoning associated with French onion soup, using a packet mix to bring that flavour into the meat without separately cooking onions.

The glaze adds a sweet, tangy layer, while Swiss cheese or Gruyère gives the top a nod to the cheese-topped soup. Letting the loaf rest before slicing helps it hold together on the plate.

Nutrition and macros by portion

The nutrition label shows one serving as written: 600 calories, 41g protein, 33g carbs, 34g fat.

The beef supplies most of the protein and fat, while the breadcrumbs, glaze and brown sugar contribute much of the carbohydrate. Cheese adds further fat and protein, and the soup mix and Worcestershire sauce contribute sodium. Serve a slice with plenty of roasted or steamed vegetables to balance the plate.

The seasoning and binder

Soup mix: It supplies concentrated onion and seasoning, so taste the cooked meatloaf before adding extra salt at the table rather than salting the raw mixture automatically.

Breadcrumbs and milk: Together they help keep the loaf tender. The short rest gives the crumbs and dry soup mix time to absorb moisture before shaping.

Mix gently for a tender loaf

Gentle mixing: Combine the ingredients only until they are evenly distributed. Working the beef too much can make the finished texture compact rather than tender.

Moisture check: The mixture should feel sticky and moist but still be shapeable. Adjust a dry mixture with a small splash of milk, or a very wet one with a tablespoon of breadcrumbs.

Shape and glaze

The groove: Press a shallow channel along the top of the loaf so the cheese has a place to sit near the end of baking. If shaping the loaf on a lined tray, aim for the dimensions given in the method so it cooks evenly.

The glaze: Spread half over the loaf before baking and keep the remainder for the later baste or the table. That gives the surface a sweet-savoury finish without using all the glaze at the start.

Check doneness and finish with cheese

Temperature: Baking time can vary with the loaf's shape and your oven, so check the centre with a stick thermometer rather than relying on time alone. The stated safe temperature for beef is 71°C (160°F).

Cheese: Add it in the final 5 minutes, then grill briefly until bubbly. Stay nearby during grilling, as cheese can brown or burn quickly.

Resting and serving

Resting: Leave the cooked loaf for 10–15 minutes before cutting. This makes it easier to slice neatly and helps limit juices running out onto the board.

Sides: Mashed potatoes, roasted vegetables and French onion gravy are suggested accompaniments. A simple green salad or steamed greens can also bring a fresh contrast to the rich loaf.

Recipe notes & tips

• Use a light touch when mixing to help keep the meatloaf tender.
• Let the mixture stand for the full 5–10 minutes before shaping.
• Use a thermometer in the centre of the loaf to check doneness.
• Keep the reserved glaze separate until you are ready to baste or serve it.
• Watch the cheese closely under the grill, as it can burn quickly.
• Rest the meatloaf for 10–15 minutes before slicing.

Variations

• Use Gruyère: Swap in grated Gruyère for a more pronounced, nutty cheese topping.
• Choose panko: Use panko breadcrumbs for a slightly different crumb texture.
• Change the mustard: Use yellow mustard instead of Dijon for a milder glaze.
• Use garlic powder: Replace the minced garlic with the listed 1 teaspoon of garlic powder.
• Serve with gravy: Add French onion gravy at the table for an even richer serving.

Common mistakes to avoid

• Overmixing the beef: Mix only until combined to avoid a dense texture.
• Skipping the rest: Give the shaped mixture 5–10 minutes so the dry ingredients can absorb moisture.
• Guessing doneness: Check the centre with a thermometer and cook beef to 71°C (160°F).
• Adding cheese too early: Put it on during the final 5 minutes so it does not overcook.
• Slicing straight away: Rest the loaf for 10–15 minutes so it is easier to slice neatly.
• Leaving it under the grill unattended: Watch the cheese and remove it as soon as it is bubbly.

How to store

Refrigerate leftover meatloaf in a covered container for up to 3–4 days. Reheat slices until piping hot, in the oven or microwave; add a little reserved glaze if you like.

Frequently asked questions