Name: Ground Beef Burger with a Fried Egg
Ingredients: 2 lb lean ground beef; ½ onion, chopped; 1 can tomato sauce; ¼ cup ketchup; 2 tbsp yellow mustard; 2 tbsp Worcestershire sauce; 1 tbsp white vinegar; salt and pepper to taste

Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Ground Beef Burger with a Fried Egg

Time20 to 30 minutes

Ingredients

Directions

Cook the beef

In pan, cook beef and onion over medium‑high heat until beef is no longer pink and onions are translucent. Drain fat.

Simmer the sauce

Add remaining ingredients except salt and pepper; cook over medium‑low heat 20 to 30 minutes.
Add salt and pepper.

Serve

Serve on hamburger buns with pickle slices.

Nutrition, whole recipe (rough)

337Calories

30 gProtein

16 gFat

18 gCarbs

What these numbers assume: 8 portions

Ingredient	Portion assumed	kcal
Beef	100g cooked	250
Onion	1 medium (110g)	44
Tomato	1 medium (123g)	22
Soy Sauce	1 tbsp (15ml)	9
Black Pepper	1 tsp ground (2.3g)	6
Mustard	1 tsp (5g) yellow	3
Vinegar	1 tbsp (15ml) distilled	3
Salt	1 tsp (6g)	0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

Recipe from the Recipes Wiki (Fandom).

Steps grouped into stages for easier reading; the method is the source's own.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

Sauce + ketchuptop 1% of all pairs

Smell alikestrong

Cooked together1,099 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Onion + mustardtop 6% of all pairs

Smell alikestrong

Cooked together9,259 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Beef + oniontop 7% of all pairs

Smell alikemoderate

Cooked together17,092 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Tomato + peppertop 7% of all pairs

Smell alikemoderate

Cooked together17,923 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Mustard + vinegartop 7% of all pairs

Smell alikemoderate

Cooked together14,067 recipes

Shared aroma: isobutyraldehyde (malty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Lean ground beef: Provides the meat that forms the main body of the burger.
Onion: Adds aromatic sweetness and moisture as it softens during cooking.
Tomato sauce: Adds moisture and body, helping the mixture simmer into a thick, cohesive sauce.
Ketchup: Adds sweetness and acidity that balance the savory beef.
Worcestershire sauce: Adds savory depth and umami to the beef mixture.

The step that matters

Drain the fat before simmering. Excess rendered fat left in the pan can make the sauce greasy and keep it from thickening properly, so pouring it off after the beef browns helps the sauce reduce into a cohesive coating.

Swap the tomato

How well each one fits the dish's main ingredients (beef, onion, sauce, ketchup, mustard, vinegar, pepper):

Horseradishfits better
Capsicumfits better
Shallotfits better
Tomatothe original

Fit is the average pairing score against beef, onion, sauce, ketchup, mustard, vinegar, pepper. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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Ground Beef Burger with a Fried Egg