Name: Beef Shepherd's Pie
Ingredients: 1 pound ground beef; 1 clove minced garlic; 1 medium white onion chopped; 1/4 cup green pepper chopped; 2 tablespoons flour; 1 teaspoon salt; 2 teaspoons freshly ground black pepper; 2 cups water; 2 cups cooked whole-kernel corn; 4 cups mashed potatoes; 2 tablespoons parsley, chopped

Why it works: Garlic and onion match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. 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.

Garlic + oniontop 1% of all pairs

Smell alikestrong

Cooked together29,058 recipes

Shared aroma: furaneol (caramel, strawberry).
Onion + potatotop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Garlic + potatotop 4% of all pairs

Smell alikemoderate

Cooked together4,517 recipes

Shared aroma: furaneol (caramel, strawberry).
Clove + peppertop 5% of all pairs

Smell alikestrong

Cooked together17,451 recipes

Shared aroma: ethyl octanoate (fruity, wine).
Corn + potatotop 5% of all pairs

Smell alikestrong

Cooked together938 recipes

Shared aroma: (e)-2-octenal (fatty, green).

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

What each ingredient does

Ground beef: Provides the savory meat base and rich flavor of the filling.
Flour: Thickens the meat mixture with the water so it becomes a sauce rather than watery.
Mashed potatoes: Forms the soft topping that browns in the oven and seals in moisture below.
White onion: Adds sweetness and aroma as it softens and browns with the beef.
Whole-kernel corn: Adds sweetness and a juicy, tender texture between the meat and potatoes.

The step that matters

Stir in the flour and cook until the mixture bubbles and thickens. Flour must be stirred in evenly and heated with the liquid so its starch swells and thickens the filling. Otherwise the filling stays thin or ends up with lumps.

Swap the clove

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

Cuminfits better
Turmericfits better
Parsleyfits better
Clovethe original

Fit is the average pairing score against beef, garlic, onion, pepper, flour, corn, potato. 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
Corn	1/2 cup kernels (82g)	77
Onion	1 medium (110g)	44
Bell Pepper	1 medium (119g)	31
Clove	1 tsp ground (2g)	7
Black Pepper	1 tsp ground (2.3g)	6
Garlic	1 clove (3g)	4
Parsley	1 tbsp chopped fresh (3.8g)	1
Salt	1 tsp (6g)	0
Water	not in our table	0

Beef Shepherd's Pie