Why it works: Potato and onion 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 ↓
Greek Style Casserole
Ingredients
Directions
Prepare the potatoes
Boil potatoes in skins until almost tender.
Peel and slice the potatoes.
Make the meat filling
While the potatoes are cooking, brown the ground beef.
Drain the hamburger.
Add butter and onion to the hamburger and slightly brown the onion.
Add tomato soup and water to the meat and simmer for 5 minutes.
Make the white sauce
Melt butter in a small saucepan, then mix in flour gradually over low heat.
After mixing well, slowly add milk while stirring.
Cook until thick.
Remove from heat and add cheese.
Assemble and bake
Layer potatoes in a greased 13 x 9 pan.
Layer ground beef over the potatoes.
Pour sauce over the beef.
Repeat the layers.
Pour all remaining sauce over the top and top with cheese.
Bake in a preheated oven at 350°F until the top is lightly browned, about 35–40 minutes.
Nutrition, whole recipe (rough)
Counts 9 of 12 ingredients. The other 3 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 |
| Potato | 1 medium (173g) baked | 161 |
| Milk | 1 cup (244ml) whole | 149 |
| Cheese | 1 oz (28g) cheddar | 113 |
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
| Soup | not in our table | 0 |
| Water | not in our table | 0 |
| Sauce | 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.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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
- Potatoes
- Form the starchy layers that give the casserole its body and bulk.
- Ground beef
- Provides the savory meat layer and rich, browned flavor.
- Tomato soup
- Adds moisture, tomato acidity and sweetness to the meat filling.
- Milk
- Forms the base of the white sauce, adding creaminess and moisture.
- Velveeta cheese
- Melts into the white sauce, adding smooth texture and savory richness.
The step that matters
Cooking the white sauce until thick. Flour must be fully mixed into the melted butter and the milk added gradually while stirring, so the sauce thickens smoothly without lumps. Cooking it until thick lets the starch fully swell, so the sauce holds its body when baked.
Swap the onion
How well each one fits the dish's main ingredients (potato, butter, tomato, pepper, beef, sauce, milk):
- Capsicumfits better
- Onionthe original
- Carrotfits about as well
- Asparagusfits about as well
Fit is the average pairing score against potato, butter, tomato, pepper, beef, sauce, milk. 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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