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 ↓
Baked Fish Fillets with Cheese Sauce
Ingredients
Directions
Prepare
Season fish fillets with salt and pepper.
Set aside.
Combine soup, onion powder, milk and mustard.
Spoon rice into greased shallow baking dish.
Bake and serve
Place fillets on top.
Pour sauce over fish.
Sprinkle with paprika, if desired.
Bake at 400 degrees for 20 to 30 minutes, or until fish flakes easily with fork.
Nutrition, whole recipe (rough)
Counts 8 of 9 ingredients. The other 1 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 |
|---|---|---|
| Salmon | 100g cooked | 208 |
| Rice | 1 cup cooked (158g) white | 206 |
| Milk | 1 cup (244ml) whole | 149 |
| Cheddar Cheese | 1 oz (28g) | 113 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Mustard | 1 tsp (5g) yellow | 3 |
| Salt | 1 tsp (6g) | 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 + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Milk + ricetop 7% of all pairsSmell alikemoderateCooked together7,374 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + ricetop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mustard + ricetop 9% of all pairsSmell alikemoderateCooked together599 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish fillets
- Forms the main protein and cooks through to a flaky texture in the oven.
- Cheddar cheese condensed soup
- Forms the creamy cheese sauce that coats the fish and moistens the rice.
- Cooked rice
- Forms the base layer that soaks up moisture from the sauce and fish juices.
- Milk
- Thins the condensed soup into a pourable sauce that bakes smooth.
- Prepared mustard
- Adds a sharp tang that balances the richness of the cheese sauce.
The step that matters
Bake until the fish flakes easily. Fish cooks quickly and becomes dry and tough if overbaked. Checking for flakiness with a fork shows when the flesh is just cooked through, so the timing range in the recipe should be treated as a guide rather than a fixed rule.
Swap the mustard
How well each one fits the dish's main ingredients (fish, pepper, cheddar cheese, onion, milk, rice):
- Potatofits better
- Capsicumfits better
- Tomatofits better
- Mustardthe original
Fit is the average pairing score against fish, pepper, cheddar cheese, onion, milk, rice. 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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