Name: Steak Skillet Dinner with Green Beans
Ingredients: 1 pound boneless beef round steak, cut into serving pieces; ¼ cup all-purpose flour; 1 tablespoon vegetable oil; 1 chopped white onion; 1 can whole white potatoes, reserve liquid; ¼ cup ketchup; 1 tablespoon Worcestershire sauce; 1 teaspoon beef bouillon granules; 1 teaspoon salt; 1 teaspoon freshly ground black pepper; 1 can green beans, drained

Why it works: Ketchup and sauce 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 ↓

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.

Ketchup + saucetop 1% of all pairs

Smell alikestrong

Cooked together1,099 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Onion + potatotop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + green beanstop 5% of all pairs

Smell alikemoderate

Cooked together81 recipes

Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
Beef + oniontop 7% of all pairs

Smell alikemoderate

Cooked together17,092 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Beef + potatotop 8% of all pairs

Smell alikemoderate

Cooked together2,052 recipes

Shared aroma: sotolon (curry, maple).

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

What each ingredient does

Beef round steak: Becomes tender as it simmers in the sauce, providing the main protein.
All-purpose flour: Coats the beef so it browns well and helps thicken the sauce.
Ketchup: Adds sweetness and acidity that balance the savory sauce.
Worcestershire sauce: Adds savory depth and tang to the sauce.
White potatoes: Absorb the sauce and add starch and body to the skillet dish.
White onion: Softens and sweetens as it browns, adding savory flavor to the sauce.

The step that matters

Simmer the beef until tender. Round steak is lean and firm, so it needs a gentle, covered simmer over low heat to break down its connective tissue. Boiling hard toughens the meat and can make the sauce reduce too quickly.

Swap the green beans

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

Horseradishfits better
Chivefits better
Capsicumfits better
Green beansthe original

Fit is the average pairing score against beef, flour, onion, potato, ketchup, sauce, 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.

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Beef	100g cooked	250
Potato	1 medium (173g) baked	161
Olive Oil	1 tbsp (14g)	119
Onion	1 medium (110g)	44
Bell Pepper	1 medium (119g)	31
Tomato	1 medium (123g)	22
Soy Sauce	1 tbsp (15ml)	9
Black Pepper	1 tsp ground (2.3g)	6
Salt	1 tsp (6g)	0

Steak Skillet Dinner with Green Beans