Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
American Shepherd's Pie
Ingredients
Directions
Prepare
Preheat oven to 350°F.
Lightly oil a 2-quart baking dish.
Make the filling
In a large skillet, over medium heat, brown ground beef, celery, and onion until meat is no longer pink.
Drain off fat and discard.
Mix in condensed vegetable soup and spread in baking dish.
Top and bake
Top with mashed potatoes.
Bake for 20 minutes to heat through.
Top with shredded cheese and bake 5 minutes more until cheese has melted.
Nutrition, whole recipe (rough)
Counts 6 of 7 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 6 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Beef | 100g cooked | 250 |
| Potato | 1 medium (173g) baked | 161 |
| Vegetable | 1 tbsp (14g) | 120 |
| Cheddar Cheese | 1 oz (28g) | 113 |
| Onion | 1 medium (110g) | 44 |
| Celery | 1 stalk (40g) | 6 |
| Soup | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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.
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Celery + potatotop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Potato + cheddar cheesetop 8% of all pairsSmell alikemoderateCooked together932 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground beef
- Provides the savoury meat base and fat that carries the flavour of the filling.
- Mashed potatoes
- Forms the soft, sealing topping that holds moisture in the filling while it heats.
- Condensed vegetable soup
- Binds the filling together and adds moisture and savoury seasoning.
- Shredded cheddar cheese
- Melts over the top to add richness and a golden, savoury surface.
The step that matters
Browning the beef until no longer pink. Browning builds savoury flavour through the Maillard reaction, and cooking the meat fully ensures it is safe to eat. Draining the fat afterward keeps the filling from being greasy.
Swap the celery
How well each one fits the dish's main ingredients (beef, onion, potato, cheddar cheese):
- Garlicfits better
- Cuminfits about as well
- Celerythe original
- Thymefits about as well
Fit is the average pairing score against beef, onion, potato, cheddar cheese. 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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