- VE
- LS
It is a Keeper
March 17, 2026
Itisakeeper.com
Baked Pierogi Casserole is an easy weeknight meal the whole family will love. This hearty casserole is creamy, cheesy and so satisfying; It’s one of those recipes that gets devoured every time I make it. It is great to bring to family and friends as well.
From the Cook
From the Cook
From the Cook
1/4
Instructions
1
Preheat oven to 350℉.
2
Slice onion and place in melted butter.
3
Layer half of the macaroni into the bottom of a 13×9 baking dish. Add ⅓ of the melted butter and onions.
4
Place half of the cheese in a single layer on top of the macaroni.
5
Layer half of the mashed potatoes on top of the cheese. Add another ⅓ of the butter and onions.
6
Repeat the layers – macaroni, butter/onions, cheese and potatoes.
7
Bake for 30 minutes or until the top is lightly browned.
My Calorie Intake
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Tips & Tricks (5)
- Caramelize Your Onions 🧅Cook the onions slowly over medium heat for 10-12 minutes until deeply golden and sweet, which builds a rich flavor foundation that elevates the entire casserole.
- Don't Overcook the Pasta 🍝Cook the elbow macaroni 1-2 minutes under al dente, since it will continue cooking in the oven and won't turn mushy in the final bake.
- Use Quality American Cheese 🧀Opt for real American cheese from the deli counter rather than pre-sliced varieties, as it melts more smoothly and creates a creamier, silkier casserole texture.
- Brown the Butter First 🧈Toast the butter until nutty and golden before mixing with the mashed potatoes to add complex, toasted flavor that deepens the overall dish.
- Cover Then Uncover Strategy 🍲Bake covered for the first 25 minutes to keep it moist, then uncover for the final 10-15 minutes to develop a light, golden top crust.
Recipe Facts
Diet at a Glance
Vegetarian
Low Sugar
My Calorie Intake
Smart Nutrition 
Nutrition Per Serving
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Glycemic Analysis
Glycemic Index
Glycemic Load
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