Name: Lazy Pierogie Casserole
Ingredients: 15 lasagna noodles; 2 eggs; 2 cups cheddar cheese (shredded); 2 cups mashed potatoes; pepper, to taste; garlic salt, to taste; onion powder, to taste; 1 cup butter; 1 onion, chopped; sour cream

Why it works: Garlic and onion match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓

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.

Garlic + oniontop 1% of all pairs

Smell alikestrong

Cooked together29,058 recipes

Shared aroma: furaneol (caramel, strawberry).
Potato + oniontop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + garlictop 4% of all pairs

Smell alikemoderate

Cooked together4,517 recipes

Shared aroma: furaneol (caramel, strawberry).
Pepper + garlictop 8% of all pairs

Smell alikemoderate

Cooked together27,090 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Cheddar cheese + potatotop 8% of all pairs

Smell alikemoderate

Cooked together932 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

Lasagna noodles: Form the flat layers that hold the potato filling in place.
Eggs: Bind the potato and cheese mixture so it sets firm when baked.
Cheddar cheese: Adds richness and helps the layers hold together and brown.
Mashed potatoes: Provide the bulk and soft, creamy texture of the filling.
Butter: Adds fat and flavor to the softened onions.
Onion: Adds savory sweetness and aroma when softened in butter.

Swap the garlic

How well each one fits the dish's main ingredients (egg, cheddar cheese, potato, pepper, onion, butter, cream):

Garlicthe original
Parsleyfits about as well
Nutmegfits less well
Celeryfits less well

Fit is the average pairing score against egg, cheddar cheese, potato, pepper, onion, butter, cream. 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.

Ingredient	Portion assumed	kcal
Potato	1 medium (173g) baked	161
Cheddar Cheese	1 oz (28g)	113
Butter	1 tbsp (14g)	102
Yogurt	170g plain Greek	100
Egg	1 large egg (50g)	78
Onion	1 medium (110g)	44
Black Pepper	1 tsp ground (2.3g)	6
Salt	1 tsp (6g)	0
Lasagna	not in our table	0

Lazy Pierogie Casserole