Why it works: Onion and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Hamburger Spanish Rice
Ingredients
Directions
In a skillet, brown beef, onion, green pepper and rice.
Add remaining ingredients and mix well.
Bring to a boil.
Reduce heat, cover and simmer 20 to 25 minutes or until the rice is tender.
Nutrition, whole recipe (rough)
Counts 9 of 10 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 9 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Beef | 100g cooked | 250 |
| Rice | 1 cup cooked (158g) white | 206 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Onion | 1 medium (110g) | 44 |
| Bell Pepper | 1 medium (119g) | 31 |
| Tomato | 1 medium (123g) | 22 |
| Soy Sauce | 1 tbsp (15ml) | 9 |
| Mustard | 1 tsp (5g) yellow | 3 |
| Salt | 1 tsp (6g) | 0 |
| Water | 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 + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 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).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 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
- Lean ground beef
- Provides the main protein and savory, browned flavor base for the dish.
- Uncooked instant rice
- Absorbs the sauce and liquid as it cooks, becoming tender and giving the dish its body.
- Tomato sauce
- Supplies the liquid and acidity that flavor the dish and help the rice cook through.
- Onion
- Adds aromatic sweetness and depth as it softens during browning.
The step that matters
Simmer covered until the rice is tender. Keeping the lid on traps steam so the rice cooks in the liquid. Lifting the lid or simmering too hot lets moisture escape, leaving the rice hard or the sauce dry.
Swap the onion
How well each one fits the dish's main ingredients (beef, pepper, rice, tomato, sauce, mustard, sugar):
- Capsicumfits better
- Horseradishfits better
- Okrafits better
- Onionthe original
Fit is the average pairing score against beef, pepper, rice, tomato, sauce, mustard, sugar. 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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