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 ↓
Shipwreck
Ingredients
Directions
Prepare
Peel onions and slice them over the bottom of a 2‑quart casserole.
Sprinkle the sliced onions with salt and pepper.
Slice potatoes and lay them over the onions.
Season the potatoes with salt and pepper.
Layer and bake
Pat the ground beef over the potatoes.
Season the ground beef with salt and pepper.
Layer the rice over the beef, then add the celery.
Mix the tomato soup and boiling water together. Pour the soup mixture over the casserole.
Bake the casserole, covered, at 350°F for 2 hours.
Nutrition, whole recipe (rough)
Counts 8 of 10 ingredients. The other 2 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 8 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Beef | 100g cooked | 250 |
| Rice | 1 cup cooked (158g) white | 206 |
| Potato | 1 medium (173g) baked | 161 |
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| Celery | 1 stalk (40g) | 6 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
| Water | not in our table | 0 |
| 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 + tomatotop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Rice + tomatotop 6% of all pairsSmell alikestrongCooked together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground beef
- Provides the meat and savory flavor that forms the main body of the casserole.
- Potatoes
- Add starch that becomes tender during baking and helps bulk out the layers.
- Long grain rice
- Absorbs liquid as it cooks, adding texture and soaking up the soup mixture.
- Tomato soup
- Supplies moisture and acidity that cooks the rice and gives the dish its sauce.
- Onions
- Add sweetness and aroma as they soften during the long, covered bake.
The step that matters
Covering the casserole while baking. Keeping the lid on traps steam so the rice and potatoes cook through in the liquid. Without a cover, the top can dry out and the rice may stay firm.
Swap the onion
How well each one fits the dish's main ingredients (beef, celery, potato, rice, tomato, pepper):
- Carrotfits better
- Capsicumfits better
- Okrafits about as well
- Onionthe original
Fit is the average pairing score against beef, celery, potato, rice, tomato, 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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