Why it works: Beef and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 17,091 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
1 10x15-inch casseroleIngredients
Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Preheat the oven to 350°F (175°C). Bring a large pot of water to a boil, cook the elbow macaroni until just tender, about 8 minutes, then drain.
In a large skillet over medium heat, brown the ground beef with the chopped onion, breaking up the meat, about 8 minutes. Cook until the beef reaches 160°F (71°C) and drain off excess fat.
Stir the tomato sauce, diced tomatoes, drained corn, rinsed kidney beans, taco seasoning, chili seasoning, garlic powder, salt and black pepper into the beef. Simmer for 10 minutes.
In a bowl, stir together the condensed cheddar cheese soup, milk, 1/2 cup sour cream and 1 cup shredded Cheddar cheese until smooth.
Combine the drained macaroni, the beef mixture and the cheese sauce, then spread everything evenly in a 10x15-inch baking dish.
Sprinkle the remaining 1 cup shredded Cheddar cheese and the crushed tortilla chips over the top. Bake uncovered for 25 minutes, until bubbling and golden.
Let the casserole rest for 5 minutes. Serve with the optional 1/2 cup sour cream spooned on top, if using.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Beef + oniontop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + corntop 3% of all pairsAroma overlapstrongMentioned together2,098 recipes
Shared aroma: 2-nonenal (fatty, green).
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Beef + tomatotop 3% of all pairsAroma overlapstrongMentioned together5,445 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Kidney beans + cheddar cheesetop 4% of all pairsAroma overlapstrongMentioned together139 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cheddar cheese + milktop 4% of all pairsAroma overlapstrongMentioned together1,963 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the kidney beans
How well each one fits the dish's main ingredients (beef, onion, tomato, sauce, corn, cheddar cheese, milk):
- Beansbetter flavor fit
- Peanutbetter flavor fit
- Lima beansbetter flavor fit
- Kidney beansthe original
Fit is the average pairing score against beef, onion, tomato, sauce, corn, cheddar cheese, milk. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
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